feat(payment): add chat support discounts and gratitude

e2e/specs/mock/payment/indonesia-qris.spec.ts

@@ -173,6 +173,7 @@ async function expectQrisOrder(
   expect(request.postDataJSON()).toMatchObject({
     planId,
     payChannel: "ezpay",
+    recipientCharacterId: "elio",
   });
 
   const dialog = page.getByRole("dialog", { name: "Scan to pay with QRIS" });
@@ -211,6 +212,10 @@ test("Indonesia VIP defaults to QRIS and completes after status polling", async
   await prepareIndonesiaUser(page);
   await page.goto("/subscription?type=vip");
 
+  await expect(page.getByText("Choose who you want to support")).toBeVisible();
+  await page.getByRole("button", { name: "Elio", exact: true }).click();
+  await expect(page.getByText("Supporting Elio")).toBeVisible();
+
   await expect(page.getByRole("button", { name: "QRIS" })).toHaveAttribute(
     "aria-pressed",
     "true",
@@ -251,6 +256,7 @@ test("Indonesia credit top-up uses QRIS display cents", async ({ page }) => {
   const payment = await registerIndonesiaPaymentMocks(page);
   await prepareIndonesiaUser(page);
   await page.goto("/subscription?type=topup");
+  await page.getByRole("button", { name: "Elio", exact: true }).click();
   await expectCheckoutButtonLayout(page);
 
   const orderId = await expectQrisOrder(

src/app/chat/__tests__/chat-support-cta.test.ts

@@ -0,0 +1,84 @@
+import { describe, expect, it } from "vitest";
+
+import { deriveChatSupportCta } from "../chat-support-cta";
+
+describe("deriveChatSupportCta", () => {
+  const now = Date.parse("2026-07-28T00:00:00.000Z");
+
+  it("shows first recharge ahead of a weaker role offer without inventing a timer", () => {
+    expect(
+      deriveChatSupportCta({
+        isFirstRecharge: true,
+        commercialOffer: {
+          enabled: true,
+          commercialOfferId: "offer-1",
+          characterId: "elio",
+          planId: "vip_annual",
+          discountPercent: 30,
+          pricePercent: 70,
+          expiresAt: "2026-07-29T00:00:00.000Z",
+          triggerReason: "price_objection",
+          message: "I got this for you.",
+        },
+        nowMs: now,
+      }),
+    ).toMatchObject({
+      kind: "firstRecharge",
+      label: "Support me · 50% OFF · First recharge",
+      commercialOfferId: null,
+      expiresAt: null,
+    });
+  });
+
+  it("shows a server-anchored 24-hour role offer countdown", () => {
+    expect(
+      deriveChatSupportCta({
+        isFirstRecharge: false,
+        commercialOffer: {
+          enabled: true,
+          commercialOfferId: "offer-1",
+          characterId: "maya-tan",
+          planId: "vip_annual",
+          discountPercent: 30,
+          pricePercent: 70,
+          expiresAt: "2026-07-29T00:00:00.000Z",
+          triggerReason: "price_objection",
+          message: "I got this for you.",
+        },
+        nowMs: now,
+      }),
+    ).toMatchObject({
+      kind: "commercialOffer",
+      label: "Support me · 30% OFF · 23:59:59",
+      commercialOfferId: "offer-1",
+      expiresAt: "2026-07-29T00:00:00.000Z",
+    });
+  });
+
+  it("returns to Support me after an offer expires or is absent", () => {
+    expect(
+      deriveChatSupportCta({
+        isFirstRecharge: false,
+        commercialOffer: null,
+        nowMs: now,
+      }).label,
+    ).toBe("Support me");
+    expect(
+      deriveChatSupportCta({
+        isFirstRecharge: false,
+        commercialOffer: {
+          enabled: true,
+          commercialOfferId: "offer-1",
+          characterId: "elio",
+          planId: "vip_annual",
+          discountPercent: 30,
+          pricePercent: 70,
+          expiresAt: "2026-07-27T00:00:00.000Z",
+          triggerReason: "price_objection",
+          message: "I got this for you.",
+        },
+        nowMs: now,
+      }).label,
+    ).toBe("Support me");
+  });
+});

src/app/chat/chat-screen.tsx

@@ -33,8 +33,8 @@ import {
   ChatHeader,
   ChatInputBar,
   ChatInsufficientCreditsBanner,
+  ChatSupportButton,
   ChatUnlockDialogs,
-  FirstRechargeOfferBanner,
   FullscreenImageViewer,
   PwaInstallOverlay,
 } from "./components";
@@ -46,7 +46,8 @@ import {
 import {
   deriveIsGuest,
 } from "./chat-screen.helpers";
-import { useFirstRechargeOfferBanner } from "./hooks/use-first-recharge-offer-banner";
+import { useChatSupportCta } from "./hooks/use-chat-support-cta";
+import { useChatCommercialMessages } from "./hooks/use-chat-commercial-messages";
 import { useChatUnlockCoordinator } from "./hooks/use-chat-unlock-coordinator";
 import { useChatGuestLogin } from "./hooks/use-chat-guest-login";
 import { useChatMessageLimitBanner } from "./hooks/use-chat-message-limit-banner";
@@ -130,10 +131,15 @@ export function ChatScreen() {
     upgradeReason: state.upgradeReason,
     paymentGuidance: state.paymentGuidance,
   });
-  const firstRechargeOfferBanner = useFirstRechargeOfferBanner({
+  const supportCta = useChatSupportCta({
+    characterId: character.id,
     historyLoaded: state.historyLoaded,
     loginStatus: authState.loginStatus,
   });
+  useChatCommercialMessages({
+    characterId: character.id,
+    loginStatus: authState.loginStatus,
+  });
   const shouldShowPwaInstall =
     state.historyLoaded && state.historyMessages.length >= 10;
   useChatGuestLogin({
@@ -422,13 +428,13 @@ export function ChatScreen() {
           <ChatHeader
             isGuest={isGuest}
             offerBanner={
-              <FirstRechargeOfferBanner
+              supportCta.visible ? (
-                visible={firstRechargeOfferBanner.visible}
+                <ChatSupportButton
-                discountPercent={firstRechargeOfferBanner.discountPercent}
+                  kind={supportCta.kind}
-                onClick={firstRechargeOfferBanner.claim}
+                  label={supportCta.label}
-                onClose={firstRechargeOfferBanner.close}
+                  onClick={supportCta.open}
-                variant="compact"
                 />
+              ) : null
             }
           />
 

src/app/chat/chat-support-cta.ts

@@ -0,0 +1,63 @@
+import type { CommercialOfferSummary } from "@/data/schemas/payment";
+
+export type ChatSupportCtaKind =
+  | "support"
+  | "firstRecharge"
+  | "commercialOffer";
+
+export interface ChatSupportCtaView {
+  kind: ChatSupportCtaKind;
+  label: string;
+  commercialOfferId: string | null;
+  planId: string | null;
+  expiresAt: string | null;
+}
+
+export function deriveChatSupportCta(input: {
+  isFirstRecharge: boolean;
+  commercialOffer: CommercialOfferSummary | null;
+  nowMs: number;
+}): ChatSupportCtaView {
+  if (input.isFirstRecharge) {
+    return {
+      kind: "firstRecharge",
+      label: "Support me · 50% OFF · First recharge",
+      commercialOfferId: null,
+      planId: null,
+      expiresAt: null,
+    };
+  }
+
+  const offer = input.commercialOffer;
+  const expiresAtMs = offer ? Date.parse(offer.expiresAt) : Number.NaN;
+  if (offer?.enabled && Number.isFinite(expiresAtMs) && expiresAtMs > input.nowMs) {
+    return {
+      kind: "commercialOffer",
+      label: `Support me · ${offer.discountPercent}% OFF · ${formatOfferCountdown(expiresAtMs, input.nowMs)}`,
+      commercialOfferId: offer.commercialOfferId,
+      planId: offer.planId,
+      expiresAt: offer.expiresAt,
+    };
+  }
+
+  return {
+    kind: "support",
+    label: "Support me",
+    commercialOfferId: null,
+    planId: null,
+    expiresAt: null,
+  };
+}
+
+export function formatOfferCountdown(expiresAtMs: number, nowMs: number): string {
+  const totalSeconds = Math.max(
+    0,
+    Math.ceil((expiresAtMs - nowMs) / 1000) - 1,
+  );
+  const hours = Math.floor(totalSeconds / 3600);
+  const minutes = Math.floor((totalSeconds % 3600) / 60);
+  const seconds = totalSeconds % 60;
+  return [hours, minutes, seconds]
+    .map((value) => String(value).padStart(2, "0"))
+    .join(":");
+}

src/app/chat/components/chat-support-button.tsx

@@ -0,0 +1,32 @@
+"use client";
+
+import { Heart, Sparkles } from "lucide-react";
+
+import type { ChatSupportCtaKind } from "../chat-support-cta";
+
+export interface ChatSupportButtonProps {
+  kind: ChatSupportCtaKind;
+  label: string;
+  onClick: () => void;
+}
+
+export function ChatSupportButton({
+  kind,
+  label,
+  onClick,
+}: ChatSupportButtonProps) {
+  const Icon = kind === "support" ? Heart : Sparkles;
+  return (
+    <button
+      type="button"
+      data-analytics-key="chat.support_character"
+      data-support-state={kind}
+      className="inline-flex min-h-9 max-w-full items-center justify-center gap-1.5 rounded-full border border-[rgba(255,255,255,0.22)] bg-[linear-gradient(135deg,rgba(246,87,160,0.96),rgba(255,119,84,0.94))] px-3 py-1.5 text-center text-[12px] font-extrabold leading-tight text-white shadow-[0_8px_24px_rgba(246,87,160,0.3)] backdrop-blur-md transition active:scale-95"
+      aria-label={label}
+      onClick={onClick}
+    >
+      <Icon className="shrink-0" size={14} strokeWidth={2.5} aria-hidden="true" />
+      <span className="whitespace-normal text-balance">{label}</span>
+    </button>
+  );
+}

src/app/chat/components/index.ts

@@ -12,6 +12,7 @@ export * from "./chat-insufficient-credits-banner";
 export * from "./chat-input-bar";
 export * from "./chat-input-text-field";
 export * from "./chat-send-button";
+export * from "./chat-support-button";
 export * from "./chat-unlock-dialogs";
 export * from "./date-header";
 export * from "./first-recharge-offer-banner";

src/app/chat/hooks/use-chat-commercial-messages.ts

@@ -0,0 +1,38 @@
+"use client";
+
+import { useEffect } from "react";
+
+import { createChatWebSocket } from "@/core/net/chat-websocket";
+import type { LoginStatus } from "@/data/schemas/auth";
+import { getSessionAccessToken } from "@/lib/auth/auth_session";
+import { useChatDispatch } from "@/stores/chat/chat-context";
+
+export function useChatCommercialMessages(input: {
+  characterId: string;
+  loginStatus: LoginStatus;
+}) {
+  const chatDispatch = useChatDispatch();
+
+  useEffect(() => {
+    if (input.loginStatus === "notLoggedIn" || input.loginStatus === "guest") {
+      return;
+    }
+
+    let disposed = false;
+    let socket: ReturnType<typeof createChatWebSocket> | null = null;
+    void getSessionAccessToken().then((token) => {
+      if (disposed || !token) return;
+      socket = createChatWebSocket(token);
+      socket.onCommercialMessage = (message) => {
+        if (message.characterId !== input.characterId) return;
+        chatDispatch({ type: "ChatCommercialMessageReceived", message });
+      };
+      socket.connect();
+    });
+
+    return () => {
+      disposed = true;
+      socket?.disconnect();
+    };
+  }, [chatDispatch, input.characterId, input.loginStatus]);
+}

src/app/chat/hooks/use-chat-support-cta.ts

@@ -0,0 +1,97 @@
+"use client";
+
+import { useEffect, useMemo, useRef, useState } from "react";
+import { shallowEqual } from "@xstate/react";
+
+import type { LoginStatus } from "@/data/schemas/auth";
+import { getDefaultPayChannelForCountryCode } from "@/lib/payment/default_pay_channel";
+import { useAppNavigator } from "@/router/use-app-navigator";
+import {
+  usePaymentDispatch,
+  usePaymentSelector,
+} from "@/stores/payment/payment-context";
+import { useUserSelector } from "@/stores/user/user-context";
+
+import { deriveChatSupportCta } from "../chat-support-cta";
+
+export function useChatSupportCta(input: {
+  characterId: string;
+  historyLoaded: boolean;
+  loginStatus: LoginStatus;
+}) {
+  const navigator = useAppNavigator();
+  const paymentDispatch = usePaymentDispatch();
+  const initializedCharacterRef = useRef<string | null>(null);
+  const [nowMs, setNowMs] = useState(() => Date.now());
+  const payment = usePaymentSelector(
+    (state) => ({
+      commercialOffer: state.context.commercialOffer,
+      isFirstRecharge: state.context.isFirstRecharge,
+      supportCharacterId: state.context.supportCharacterId,
+    }),
+    shallowEqual,
+  );
+  const countryCode = useUserSelector(
+    (state) => state.context.currentUser?.countryCode,
+  );
+  const isAuthenticated =
+    input.loginStatus !== "notLoggedIn" && input.loginStatus !== "guest";
+
+  useEffect(() => {
+    if (!isAuthenticated) return;
+    if (initializedCharacterRef.current === input.characterId) return;
+    initializedCharacterRef.current = input.characterId;
+    paymentDispatch({
+      type: "PaymentInit",
+      characterId: input.characterId,
+      payChannel: getDefaultPayChannelForCountryCode(countryCode),
+    });
+  }, [countryCode, input.characterId, isAuthenticated, paymentDispatch]);
+
+  useEffect(() => {
+    if (!payment.commercialOffer) return;
+    const timer = window.setInterval(() => setNowMs(Date.now()), 1000);
+    return () => window.clearInterval(timer);
+  }, [payment.commercialOffer]);
+
+  const cta = useMemo(
+    () =>
+      deriveChatSupportCta({
+        isFirstRecharge:
+          isAuthenticated && payment.supportCharacterId === input.characterId
+            ? payment.isFirstRecharge
+            : false,
+        commercialOffer:
+          isAuthenticated && payment.supportCharacterId === input.characterId
+            ? payment.commercialOffer
+            : null,
+        nowMs,
+      }),
+    [
+      input.characterId,
+      isAuthenticated,
+      nowMs,
+      payment.commercialOffer,
+      payment.isFirstRecharge,
+      payment.supportCharacterId,
+    ],
+  );
+
+  const open = () => {
+    navigator.openSubscription({
+      type: cta.planId?.startsWith("dol_") ? "topup" : "vip",
+      returnTo: "chat",
+      ...(cta.planId ? { planId: cta.planId } : {}),
+      ...(cta.commercialOfferId
+        ? { commercialOfferId: cta.commercialOfferId }
+        : {}),
+      analytics: {
+        entryPoint: "chat_offer_banner",
+        triggerReason:
+          cta.kind === "support" ? "vip_cta" : "commercial_offer",
+      },
+    });
+  };
+
+  return { ...cta, visible: input.historyLoaded, open };
+}

src/app/subscription/__tests__/subscription-page.test.tsx

@@ -34,14 +34,14 @@ describe("SubscriptionPage", () => {
     );
   });
 
-  it("uses Elio for missing source navigation context", async () => {
+  it("requires an explicit selection when source navigation has no character", async () => {
     const page = await SubscriptionPage({
       searchParams: Promise.resolve({}),
     });
 
     renderToStaticMarkup(page);
     expect(mocks.screenProps).toHaveBeenLastCalledWith(
-      expect.objectContaining({ sourceCharacterSlug: "elio" }),
+      expect.objectContaining({ sourceCharacterSlug: null }),
     );
   });
 });

src/app/subscription/__tests__/subscription-screen-flow.test.tsx

@@ -3,6 +3,16 @@ import { createRoot, type Root } from "react-dom/client";
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
 
 const mocks = vi.hoisted(() => {
+  const characters = [
+    { id: "elio", slug: "elio", displayName: "Elio Silvestri", shortName: "Elio" },
+    { id: "maya-tan", slug: "maya", displayName: "Maya Tan", shortName: "Maya" },
+    {
+      id: "nayeli-cervantes",
+      slug: "nayeli",
+      displayName: "Nayeli Cervantes",
+      shortName: "Nayeli",
+    },
+  ];
   const payment = {
     status: "ready",
     plans: [
@@ -52,7 +62,17 @@ const mocks = vi.hoisted(() => {
       payment.selectedPlanId = event.planId;
     }
   });
-  return { payment, paymentDispatch, planClick: vi.fn() };
+  return {
+    characterCatalog: {
+      characters,
+      getBySlug: (slug: string | null) =>
+        characters.find((character) => character.slug === slug) ?? null,
+    },
+    payment,
+    paymentDispatch,
+    paymentFlowInput: vi.fn(),
+    planClick: vi.fn(),
+  };
 });
 
 vi.mock("@/app/_components", () => ({
@@ -83,6 +103,10 @@ vi.mock("@/stores/user/user-context", () => ({
   useUserState: () => ({ currentUser: { countryCode: "ID" } }),
 }));
 
+vi.mock("@/providers/character-catalog-provider", () => ({
+  useCharacterCatalog: () => mocks.characterCatalog,
+}));
+
 vi.mock("@/lib/payment/payment_method", () => ({
   getPaymentMethodConfig: () => ({
     initialPayChannel: "stripe",
@@ -97,13 +121,16 @@ vi.mock("@/lib/analytics", () => ({
 }));
 
 vi.mock("../use-subscription-payment-flow", () => ({
-  useSubscriptionPaymentFlow: () => ({
+  useSubscriptionPaymentFlow: (input: unknown) => {
+    mocks.paymentFlowInput(input);
+    return {
       payment: mocks.payment,
       paymentDispatch: mocks.paymentDispatch,
       showPaymentSuccessDialog: false,
       handleBackClick: vi.fn(),
       handlePaymentSuccessClose: vi.fn(),
-  }),
+    };
+  },
 }));
 
 vi.mock("../components", () => ({
@@ -179,6 +206,7 @@ describe("SubscriptionScreen payment selection flow", () => {
     }
     mocks.payment.selectedPlanId = "vip_monthly";
     mocks.paymentDispatch.mockClear();
+    mocks.paymentFlowInput.mockClear();
     mocks.planClick.mockClear();
     container = document.createElement("div");
     document.body.appendChild(container);
@@ -298,6 +326,36 @@ describe("SubscriptionScreen payment selection flow", () => {
       "Your first recharge price is already applied",
     );
   });
+
+  it("requires a support character selection when opened without a character", () => {
+    mocks.payment.selectedPlanId = "coin_1000";
+
+    act(() =>
+      root.render(
+        <SubscriptionScreen
+          subscriptionType="topup"
+          sourceCharacterSlug={null}
+        />,
+      ),
+    );
+
+    const checkout = container.querySelector<HTMLButtonElement>(
+      '[data-testid="checkout"]',
+    );
+    expect(container.textContent).toContain("Choose who you want to support");
+    expect(checkout?.disabled).toBe(true);
+    expect(mocks.paymentFlowInput).toHaveBeenLastCalledWith(
+      expect.objectContaining({ sourceCharacterSlug: null }),
+    );
+
+    act(() => clickButton(container, "Maya"));
+
+    expect(container.textContent).toContain("Supporting Maya");
+    expect(checkout?.disabled).toBe(false);
+    expect(mocks.paymentFlowInput).toHaveBeenLastCalledWith(
+      expect.objectContaining({ sourceCharacterSlug: "maya" }),
+    );
+  });
 });
 
 function clickButton(root: ParentNode, label: string): void {

src/app/subscription/components/subscription-screen.module.css

@@ -61,6 +61,52 @@
   box-shadow: 0 12px 30px rgba(22, 101, 52, 0.12);
 }
 
+.supportCharacterSelector {
+  margin-top: var(--page-section-gap, 14px);
+  padding: 14px 16px;
+  border: 1px solid rgba(246, 87, 160, 0.2);
+  border-radius: var(--responsive-card-radius-sm, 22px);
+  background: rgba(255, 255, 255, 0.9);
+  color: #4a3340;
+}
+
+.supportCharacterSelector h2 {
+  margin: 0;
+  color: #24151d;
+  font-size: var(--responsive-card-title, 17px);
+}
+
+.supportCharacterSelector p {
+  margin: 6px 0 10px;
+  font-size: var(--responsive-caption, 13px);
+  line-height: 1.4;
+}
+
+.supportCharacterOptions {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 8px;
+}
+
+.supportCharacterOption,
+.supportCharacterOptionActive {
+  border: 1px solid rgba(246, 87, 160, 0.24);
+  border-radius: 999px;
+  padding: 7px 12px;
+  background: #fff;
+  color: #8e315e;
+  cursor: pointer;
+  font: inherit;
+  font-size: 13px;
+  font-weight: 800;
+}
+
+.supportCharacterOptionActive {
+  border-color: #f657a0;
+  background: #f657a0;
+  color: #fff;
+}
+
 .characterSupportBanner {
   margin-top: var(--page-section-gap, 14px);
   padding: 14px 16px;

src/app/subscription/page.tsx

@@ -11,7 +11,6 @@ import {
   type PaymentSearchParams,
 } from "@/lib/payment/payment_search_params";
 import {
-  DEFAULT_CHARACTER_SLUG,
   getCharacterBySlug,
 } from "@/data/constants/character";
 
@@ -31,8 +30,7 @@ export default async function SubscriptionPage({
     getFirstPaymentSearchParam(query.type),
   );
   const sourceCharacterSlug =
-    getCharacterBySlug(getFirstPaymentSearchParam(query.character))?.slug ??
+    getCharacterBySlug(getFirstPaymentSearchParam(query.character))?.slug ?? null;
-    DEFAULT_CHARACTER_SLUG;
   const initialPlanId = getFirstPaymentSearchParam(query.planId);
   const commercialOfferId = getFirstPaymentSearchParam(
     query.commercialOfferId,

src/app/subscription/subscription-screen.tsx

@@ -9,10 +9,10 @@ import { usePaymentPlanAnalytics } from "@/app/_hooks/use-payment-plan-analytics
 import type { PayChannel } from "@/data/schemas/payment";
 import type { SubscriptionReturnTo } from "@/lib/navigation/subscription_exit";
 import {
-  DEFAULT_CHARACTER,
   DEFAULT_CHARACTER_SLUG,
   getCharacterBySlug,
 } from "@/data/constants/character";
+import { useCharacterCatalog } from "@/providers/character-catalog-provider";
 import {
   behaviorAnalytics,
   getDefaultPaymentAnalyticsContext,
@@ -51,7 +51,7 @@ export interface SubscriptionScreenProps {
   returnTo?: SubscriptionReturnTo;
   initialPayChannel?: PayChannel | null;
   analyticsContext?: PaymentAnalyticsContext;
-  sourceCharacterSlug?: string;
+  sourceCharacterSlug?: string | null;
   initialPlanId?: string | null;
   initialAutoRenew?: boolean | null;
   commercialOfferId?: string | null;
@@ -80,9 +80,15 @@ export function SubscriptionScreen({
   const [paymentIssueNotice, setPaymentIssueNotice] = useState<string | null>(
     null,
   );
+  const characterCatalog = useCharacterCatalog();
+  const [selectedSupportCharacterSlug, setSelectedSupportCharacterSlug] =
+    useState<string | null>(() =>
+      getCharacterBySlug(sourceCharacterSlug)?.slug ?? null,
+    );
   const userState = useUserState();
-  const sourceCharacter =
+  const sourceCharacter = characterCatalog.getBySlug(
-    getCharacterBySlug(sourceCharacterSlug) ?? DEFAULT_CHARACTER;
+    selectedSupportCharacterSlug,
+  );
   const hasHydrated = useHasHydrated();
   const countryCode = userState.currentUser?.countryCode;
   const paymentMethodConfig = getPaymentMethodConfig({
@@ -102,7 +108,7 @@ export function SubscriptionScreen({
     subscriptionType,
     shouldResumePendingOrder,
     returnTo,
-    sourceCharacterSlug,
+    sourceCharacterSlug: sourceCharacter?.slug ?? null,
     initialPayChannel: paymentMethodConfig.initialPayChannel,
     initialPlanId,
     initialAutoRenew,
@@ -163,6 +169,7 @@ export function SubscriptionScreen({
     (plan) => plan.id === payment.selectedPlanId,
   );
   const canActivate =
+    sourceCharacter !== null &&
     selectedPlan !== null &&
     canCheckoutSubscriptionPlan({
       selectedPlanId: payment.selectedPlanId,
@@ -271,7 +278,36 @@ export function SubscriptionScreen({
           </p>
         ) : null}
 
-        {chatActionId ? (
+        <section className={styles.supportCharacterSelector}>
+          <h2>
+            {sourceCharacter
+              ? `Supporting ${sourceCharacter.shortName}`
+              : "Choose who you want to support"}
+          </h2>
+          <p>
+            Your VIP or credit purchase supports the character you choose, and
+            they will thank you after the payment and benefits are confirmed.
+          </p>
+          <div className={styles.supportCharacterOptions}>
+            {characterCatalog.characters.map((character) => (
+              <button
+                key={character.id}
+                type="button"
+                className={
+                  sourceCharacter?.id === character.id
+                    ? styles.supportCharacterOptionActive
+                    : styles.supportCharacterOption
+                }
+                aria-pressed={sourceCharacter?.id === character.id}
+                onClick={() => setSelectedSupportCharacterSlug(character.slug)}
+              >
+                {character.shortName}
+              </button>
+            ))}
+          </div>
+        </section>
+
+        {chatActionId && sourceCharacter ? (
           <section
             className={styles.characterSupportBanner}
             aria-label={`Support ${sourceCharacter.displayName}`}
@@ -287,7 +323,7 @@ export function SubscriptionScreen({
           </section>
         ) : null}
 
-        {payment.commercialOffer && !hasFirstRechargeOffer ? (
+        {payment.commercialOffer && !hasFirstRechargeOffer && sourceCharacter ? (
           <section
             className={styles.firstRechargeBanner}
             aria-label={`${sourceCharacter.shortName} private offer`}
@@ -339,7 +375,7 @@ export function SubscriptionScreen({
             disabled={!canActivate}
             subscriptionType={subscriptionType}
             returnTo={returnTo}
-            sourceCharacterSlug={sourceCharacterSlug}
+            sourceCharacterSlug={sourceCharacter?.slug ?? DEFAULT_CHARACTER_SLUG}
           />
         </div>
 
@@ -364,7 +400,7 @@ export function SubscriptionScreen({
             orderId={payment.currentOrderId}
             payChannel={payment.payChannel}
             countryCode={countryCode}
-            characterId={sourceCharacterSlug}
+            characterId={sourceCharacter?.id ?? ""}
             onClose={() => setShowPaymentIssueDialog(false)}
             onSubmitted={setPaymentIssueNotice}
           />

src/app/subscription/use-subscription-payment-flow.ts

@@ -5,7 +5,11 @@ import { useRouter } from "next/navigation";
 
 import { usePaymentRouteFlow } from "@/app/_hooks/use-payment-route-flow";
 import type { PayChannel } from "@/data/schemas/payment";
-import { DEFAULT_CHARACTER_SLUG } from "@/data/constants/character";
+import {
+  DEFAULT_CHARACTER,
+  DEFAULT_CHARACTER_SLUG,
+  getCharacterBySlug,
+} from "@/data/constants/character";
 import {
   consumeSubscriptionExitUrl,
   resolveSubscriptionSuccessExitUrl,
@@ -19,7 +23,7 @@ export interface UseSubscriptionPaymentFlowInput {
   shouldResumePendingOrder: boolean;
   returnTo: SubscriptionReturnTo;
   initialPayChannel: PayChannel;
-  sourceCharacterSlug?: string;
+  sourceCharacterSlug?: string | null;
   initialPlanId?: string | null;
   initialAutoRenew?: boolean | null;
   commercialOfferId?: string | null;
@@ -40,10 +44,13 @@ export function useSubscriptionPaymentFlow({
   chatActionId = null,
 }: UseSubscriptionPaymentFlowInput) {
   const router = useRouter();
+  const supportCharacter = getCharacterBySlug(sourceCharacterSlug);
+  const exitCharacterSlug = supportCharacter?.slug ?? DEFAULT_CHARACTER.slug;
   const { payment, paymentDispatch } = usePaymentRouteFlow({
     initialPayChannel,
     paymentType: subscriptionType,
     shouldResumePendingOrder,
+    characterId: supportCharacter?.id,
     initialPlanId,
     initialAutoRenew,
     commercialOfferId,
@@ -65,7 +72,7 @@ export function useSubscriptionPaymentFlow({
   const handleBackClick = () => {
     void (async () => {
       router.replace(
-        await consumeSubscriptionExitUrl(returnTo, sourceCharacterSlug),
+        await consumeSubscriptionExitUrl(returnTo, exitCharacterSlug),
       );
     })();
   };
@@ -77,7 +84,7 @@ export function useSubscriptionPaymentFlow({
       router.replace(
         await resolveSubscriptionSuccessExitUrl(
           returnTo,
-          sourceCharacterSlug,
+          exitCharacterSlug,
         ),
       );
     })();

src/core/net/__tests__/chat-websocket-payment-guidance.test.ts

@@ -45,6 +45,27 @@ describe("ChatWebSocket payment guidance", () => {
 
     expect(onPaymentGuidance).not.toHaveBeenCalled();
   });
+
+  it("delivers a persisted commercial thank-you as a live role message", () => {
+    const socket = new ChatWebSocket("ws://example.test/chat", "token");
+    const onCommercialMessage = vi.fn();
+    socket.onCommercialMessage = onCommercialMessage;
+
+    receive(socket, {
+      type: "commercial_message",
+      messageId: "message-1",
+      message: "Thank you for supporting me.",
+      characterId: "maya-tan",
+      createdAt: "2026-07-28T00:00:00.000Z",
+    });
+
+    expect(onCommercialMessage).toHaveBeenCalledWith({
+      messageId: "message-1",
+      message: "Thank you for supporting me.",
+      characterId: "maya-tan",
+      createdAt: "2026-07-28T00:00:00.000Z",
+    });
+  });
 });
 
 function receive(socket: ChatWebSocket, payload: unknown): void {

src/core/net/chat-websocket.ts

@@ -37,6 +37,13 @@ export interface PaywallStatusPayload {
   reason: string | null;
 }
 
+export interface CommercialMessagePayload {
+  messageId: string;
+  message: string;
+  characterId: string;
+  createdAt: string;
+}
+
 export class ChatWebSocket {
   private ws: WebSocket | null = null;
   private reconnectTimer: ReturnType<typeof setTimeout> | null = null;
@@ -52,6 +59,7 @@ export class ChatWebSocket {
   onCommercialAction: ((action: CommercialAction) => void) | null = null;
   onChatAction: ((action: ChatAction) => void) | null = null;
   onPaymentGuidance: ((guidance: PaymentGuidance) => void) | null = null;
+  onCommercialMessage: ((message: CommercialMessagePayload) => void) | null = null;
   onError: ((errorMessage: string) => void) | null = null;
 
   constructor(
@@ -149,6 +157,10 @@ export class ChatWebSocket {
       done?: boolean;
       audioUrl?: string;
       error?: string;
+      messageId?: string;
+      message?: string;
+      characterId?: string;
+      createdAt?: string;
       data?: Record<string, unknown> & {
         image?: {
           type?: string | null;
@@ -163,6 +175,10 @@ export class ChatWebSocket {
         ruleId?: string;
         kind?: string;
         orderId?: string | null;
+        messageId?: string;
+        message?: string;
+        characterId?: string;
+        createdAt?: string;
       };
     };
     try {
@@ -217,6 +233,25 @@ export class ChatWebSocket {
         if (guidance.success) this.onPaymentGuidance?.(guidance.data);
         break;
       }
+      case "commercial_message": {
+        const commercialMessage = payload.data?.messageId
+          ? payload.data
+          : payload;
+        if (
+          commercialMessage?.messageId &&
+          commercialMessage.message &&
+          commercialMessage.characterId &&
+          commercialMessage.createdAt
+        ) {
+          this.onCommercialMessage?.({
+            messageId: commercialMessage.messageId,
+            message: commercialMessage.message,
+            characterId: commercialMessage.characterId,
+            createdAt: commercialMessage.createdAt,
+          });
+        }
+        break;
+      }
       case "error":
         this.onError?.(payload.error ?? "Unknown error");
         break;

src/data/repositories/interfaces/ipayment_repository.ts

@@ -13,7 +13,10 @@ import type { Result } from "@/utils/result";
 
 export interface IPaymentRepository {
   /** 获取套餐列表。 */
-  getPlans(commercialOfferId?: string): Promise<Result<PaymentPlansResponse>>;
+  getPlans(
+    commercialOfferId?: string,
+    supportCharacterId?: string,
+  ): Promise<Result<PaymentPlansResponse>>;
 
   /** 获取本地缓存套餐列表。 */
   getCachedPlans(): Promise<Result<PaymentPlansResponse | null>>;

src/data/repositories/payment_repository.ts

@@ -24,10 +24,18 @@ export class PaymentRepository implements IPaymentRepository {
   constructor(private readonly api: PaymentApi) {}
 
   /** 获取套餐列表。 */
-  async getPlans(commercialOfferId?: string): Promise<Result<PaymentPlansResponse>> {
+  async getPlans(
+    commercialOfferId?: string,
+    supportCharacterId?: string,
+  ): Promise<Result<PaymentPlansResponse>> {
     return Result.wrap(async () => {
-      const response = await this.api.getPlans(commercialOfferId);
+      const response = await this.api.getPlans(
-      if (!commercialOfferId) await PaymentPlansStorage.setPlans(response);
+        commercialOfferId,
+        supportCharacterId,
+      );
+      if (!commercialOfferId && !supportCharacterId) {
+        await PaymentPlansStorage.setPlans(response);
+      }
       return response;
     });
   }

src/data/schemas/payment/__tests__/payment_plan.test.ts

@@ -195,9 +195,11 @@ describe("PaymentPlansResponse", () => {
 
   it("parses one user-bound commercial offer and its discounted plan", () => {
     const response = PaymentPlansResponseSchema.parse({
+        supportCharacterId: "maya-tan",
         commercialOffer: {
           enabled: true,
           commercialOfferId: "offer-1",
+          characterId: "maya-tan",
         planId: "vip_annual",
         discountPercent: 30,
         pricePercent: 70,
@@ -225,6 +227,8 @@ describe("PaymentPlansResponse", () => {
     });
 
     expect(response.commercialOffer?.commercialOfferId).toBe("offer-1");
+    expect(response.supportCharacterId).toBe("maya-tan");
+    expect(response.commercialOffer?.characterId).toBe("maya-tan");
     expect(response.plans[0]).toMatchObject({
       planId: "vip_annual",
       commercialOfferId: "offer-1",

src/data/schemas/payment/response/payment_plans_response.ts

@@ -24,6 +24,7 @@ export const CommercialOfferSummarySchema = z
   .object({
     enabled: booleanOrFalse,
     commercialOfferId: z.string().min(1),
+    characterId: stringOrEmpty,
     planId: z.string().min(1),
     discountPercent: numberOrZero,
     pricePercent: numberOrZero,
@@ -36,6 +37,7 @@ export const CommercialOfferSummarySchema = z
 export const PaymentPlansResponseSchema = z
   .object({
     isFirstRecharge: booleanOrFalse,
+    supportCharacterId: stringOrEmpty,
     firstRechargeOffer: schemaOrNull(FirstRechargeOfferSchema),
     commercialOffer: schemaOrNull(CommercialOfferSummarySchema),
     plans: arrayOrEmpty(PaymentPlanSchema),

src/data/services/api/payment_api.ts

@@ -26,9 +26,19 @@ import { ApiEnvelope, unwrap } from "./response_helper";
 
 export class PaymentApi {
   /** 获取 VIP 与 Top-up 套餐列表。 */
-  async getPlans(commercialOfferId?: string): Promise<PaymentPlansResponse> {
+  async getPlans(
+    commercialOfferId?: string,
+    supportCharacterId?: string,
+  ): Promise<PaymentPlansResponse> {
     const env = await httpClient<ApiEnvelope<unknown>>(ApiPath.paymentPlans, {
-      ...(commercialOfferId ? { query: { commercialOfferId } } : {}),
+      ...(commercialOfferId || supportCharacterId
+        ? {
+            query: {
+              ...(commercialOfferId ? { commercialOfferId } : {}),
+              ...(supportCharacterId ? { supportCharacterId } : {}),
+            },
+          }
+        : {}),
     });
     return PaymentPlansResponseSchema.parse(
       unwrap(env) as Record<string, unknown>,

src/lib/analytics/__tests__/payment_analytics_context.test.ts

@@ -17,6 +17,17 @@ describe("payment analytics context", () => {
       entryPoint: "chat_unlock",
       triggerReason: "ad_landing",
     });
+
+    expect(
+      parsePaymentAnalyticsContext({
+        entryPoint: "chat_offer_banner",
+        triggerReason: "commercial_offer",
+        subscriptionType: "vip",
+      }),
+    ).toEqual({
+      entryPoint: "chat_offer_banner",
+      triggerReason: "commercial_offer",
+    });
   });
 
   it("falls back independently for invalid query values", () => {

src/lib/analytics/payment_analytics_context.ts

@@ -7,6 +7,7 @@ export type PaymentAnalyticsTriggerReason =
   | "insufficient_credits"
   | "profile_recharge"
   | "vip_cta"
+  | "commercial_offer"
   | "ad_landing"
   | "manual_recharge"
   | "unknown";
@@ -47,6 +48,7 @@ const TRIGGER_REASONS = new Set<PaymentAnalyticsTriggerReason>([
   "insufficient_credits",
   "profile_recharge",
   "vip_cta",
+  "commercial_offer",
   "ad_landing",
   "manual_recharge",
   "unknown",

src/router/navigation-types.ts

@@ -20,6 +20,8 @@ export interface OpenSubscriptionInput {
   replace?: boolean;
   analytics?: PaymentAnalyticsContext;
   chatActionId?: string;
+  planId?: string;
+  commercialOfferId?: string;
 }
 
 export interface StartMessageUnlockInput {

src/router/use-global-app-navigator.ts

@@ -80,6 +80,8 @@ export function useGlobalAppNavigator(): GlobalAppNavigator {
       replace: shouldReplace = false,
       analytics = getDefaultPaymentAnalyticsContext(type),
       chatActionId,
+      planId,
+      commercialOfferId,
     }: OpenGlobalSubscriptionInput): void => {
       const target = ROUTE_BUILDERS.subscription(type, {
         payChannel,
@@ -87,6 +89,8 @@ export function useGlobalAppNavigator(): GlobalAppNavigator {
         sourceCharacterSlug,
         analytics,
         chatActionId,
+        planId,
+        commercialOfferId,
       });
 
       behaviorAnalytics.rechargeModalOpen(analytics);

src/stores/chat/__tests__/chat-commercial-message.test.ts

@@ -0,0 +1,34 @@
+import { describe, expect, it } from "vitest";
+
+import { appendCommercialMessage } from "../helper/commercial-message";
+
+describe("chat commercial message", () => {
+  const incoming = {
+    messageId: "payment-thanks-1",
+    message: "Thank you for supporting me.",
+    characterId: "maya-tan",
+    createdAt: "2026-07-28T08:30:00.000Z",
+  };
+
+  it("appends one persisted payment thank-you to the matching character chat", () => {
+    const messages = appendCommercialMessage([], "maya-tan", incoming);
+
+    expect(messages).toHaveLength(1);
+    expect(messages[0]).toMatchObject({
+      remoteId: "payment-thanks-1",
+      content: "Thank you for supporting me.",
+      isFromAI: true,
+    });
+  });
+
+  it("ignores duplicate delivery and a message for another character", () => {
+    const messages = appendCommercialMessage([], "maya-tan", incoming);
+
+    expect(appendCommercialMessage(messages, "maya-tan", incoming)).toEqual(
+      messages,
+    );
+    expect(appendCommercialMessage(messages, "elio", incoming)).toEqual(
+      messages,
+    );
+  });
+});

src/stores/chat/chat-events.ts

@@ -28,6 +28,15 @@ export type ChatEvent =
     }
   | { type: "ChatOlderHistoryLoadFailed"; error: unknown }
   | { type: "ChatHistoryRefreshRequested" }
+  | {
+      type: "ChatCommercialMessageReceived";
+      message: {
+        messageId: string;
+        message: string;
+        characterId: string;
+        createdAt: string;
+      };
+    }
   // Chat domain events.
   | { type: "ChatSendMessage"; content: string }
   | { type: "ChatSendImage"; imageBase64: string }

src/stores/chat/helper/commercial-message.ts

@@ -0,0 +1,30 @@
+import { createRemoteUiMessageIdentity, type UiMessage } from "../ui-message";
+import { todayString } from "@/utils/date";
+
+export interface IncomingCommercialMessage {
+  messageId: string;
+  message: string;
+  characterId: string;
+  createdAt: string;
+}
+
+export function appendCommercialMessage(
+  messages: readonly UiMessage[],
+  activeCharacterId: string,
+  incoming: IncomingCommercialMessage,
+): UiMessage[] {
+  if (incoming.characterId !== activeCharacterId) return [...messages];
+  if (messages.some((message) => message.remoteId === incoming.messageId)) {
+    return [...messages];
+  }
+  const createdAt = new Date(incoming.createdAt);
+  return [
+    ...messages,
+    {
+      ...createRemoteUiMessageIdentity(incoming.messageId, true),
+      content: incoming.message,
+      isFromAI: true,
+      date: todayString(Number.isNaN(createdAt.getTime()) ? new Date() : createdAt),
+    },
+  ];
+}

src/stores/chat/machine/session-flow.ts

@@ -1,4 +1,5 @@
 import { createChatPromotionState } from "../helper/promotion";
+import { appendCommercialMessage } from "../helper/commercial-message";
 import { shouldPromptUnlockHistory } from "../helper/unlock";
 import { createInitialChatState } from "../chat-state";
 import {
@@ -53,6 +54,19 @@ const injectPromotionAction = unlockMachineSetup.assign(({ event }) => {
 
 const clearPromotionAction = unlockMachineSetup.assign({ promotion: null });
 
+const appendCommercialMessageAction = unlockMachineSetup.assign(
+  ({ context, event }) => {
+    if (event.type !== "ChatCommercialMessageReceived") return {};
+    return {
+      messages: appendCommercialMessage(
+        context.messages,
+        context.characterId,
+        event.message,
+      ),
+    };
+  },
+);
+
 export const chatMachineSetup = unlockMachineSetup.extend({
   actions: {
     startGuestSession: startGuestSessionAction,
@@ -60,6 +74,7 @@ export const chatMachineSetup = unlockMachineSetup.extend({
     clearChatSession: clearChatSessionAction,
     injectPromotion: injectPromotionAction,
     clearPromotion: clearPromotionAction,
+    appendCommercialMessage: appendCommercialMessageAction,
   },
 });
 
@@ -258,6 +273,7 @@ export const chatRootStateConfig = chatMachineSetup.createStateConfig({
   on: {
     ChatPromotionInjected: { actions: "injectPromotion" },
     ChatPromotionCleared: { actions: "clearPromotion" },
+    ChatCommercialMessageReceived: { actions: "appendCommercialMessage" },
   },
   states: {
     idle: idleState,

src/stores/payment/__tests__/payment-order-flow.test.ts

@@ -105,6 +105,26 @@ describe("payment order flow", () => {
     actor.stop();
   });
 
+  it("binds a default VIP or credit order to the selected support character", async () => {
+    const createOrderSpy = vi.fn<CreateOrderSpy>();
+    const actor = createActor(
+      createTestPaymentMachine({ createOrderSpy }),
+    ).start();
+    actor.send({ type: "PaymentInit", characterId: "maya-tan" });
+    await waitFor(actor, (snapshot) => snapshot.matches("ready"));
+
+    actor.send({ type: "PaymentCreateOrderSubmitted" });
+    await waitFor(actor, (snapshot) => snapshot.matches("paid"));
+
+    expect(createOrderSpy).toHaveBeenCalledWith({
+      planId: "vip_monthly",
+      payChannel: "stripe",
+      autoRenew: true,
+      recipientCharacterId: "maya-tan",
+    });
+    actor.stop();
+  });
+
   it("carries the originating chat action into order creation", async () => {
     const createOrderSpy = vi.fn<CreateOrderSpy>();
     const actor = createActor(

src/stores/payment/helper/catalog.ts

@@ -136,12 +136,20 @@ export function consumeFirstRechargeState(
   context: PaymentState,
 ): Pick<
   PaymentState,
-  "plans" | "isFirstRecharge" | "selectedPlanId" | "autoRenew" | "errorMessage"
+  | "plans"
+  | "isFirstRecharge"
+  | "commercialOffer"
+  | "commercialOfferId"
+  | "selectedPlanId"
+  | "autoRenew"
+  | "errorMessage"
 > {
   const plans = context.plans.map(consumeFirstRechargePlan);
   return {
     ...refreshPlansState(plans, context.selectedPlanId),
     isFirstRecharge: false,
+    commercialOffer: null,
+    commercialOfferId: null,
   };
 }
 

src/stores/payment/machine/actors/plans.ts

@@ -8,9 +8,9 @@ import type { PaymentPlanCatalog } from "../../payment-state";
 
 export const loadCachedPaymentPlansActor = fromPromise<
   PaymentPlansResponse | null,
-  { catalog: PaymentPlanCatalog; commercialOfferId?: string | null }
+  { catalog: PaymentPlanCatalog; commercialOfferId?: string | null; supportCharacterId?: string | null }
 >(async ({ input }) => {
-  if (input.catalog === "tip" || input.commercialOfferId) return null;
+  if (input.catalog === "tip" || input.commercialOfferId || input.supportCharacterId) return null;
   const result = await getPaymentRepository().getCachedPlans();
   if (Result.isErr(result)) throw result.error;
   return result.data;
@@ -18,13 +18,16 @@ export const loadCachedPaymentPlansActor = fromPromise<
 
 export const refreshPaymentPlansActor = fromPromise<
   PaymentPlansResponse,
-  { catalog: PaymentPlanCatalog; commercialOfferId?: string | null }
+  { catalog: PaymentPlanCatalog; commercialOfferId?: string | null; supportCharacterId?: string | null }
 >(async ({ input }) => {
   const paymentRepo = getPaymentRepository();
   if (input.catalog === "tip") {
     throw new Error("Gift catalogs must use the gift products actor.");
   }
-  const result = await paymentRepo.getPlans(input.commercialOfferId ?? undefined);
+  const result = await paymentRepo.getPlans(
+    input.commercialOfferId ?? undefined,
+    input.supportCharacterId ?? undefined,
+  );
   if (Result.isErr(result)) throw result.error;
   return result.data;
 });

src/stores/payment/machine/catalog-flow.ts

@@ -29,8 +29,14 @@ function initializeCatalogState(
     planCatalog === "tip"
       ? (event.characterId ?? context.giftCharacterId)
       : null;
+  const supportCharacterId =
+    planCatalog === "default"
+      ? (event.characterId ?? context.supportCharacterId)
+      : null;
   const catalogChanged = planCatalog !== context.planCatalog;
-  const characterChanged = giftCharacterId !== context.giftCharacterId;
+  const characterChanged =
+    giftCharacterId !== context.giftCharacterId ||
+    supportCharacterId !== context.supportCharacterId;
   const selectionChanged =
     planCatalog === "tip"
       ? (event.category ?? null) !== context.selectedGiftCategory ||
@@ -49,6 +55,7 @@ function initializeCatalogState(
     planCatalog,
     ...(event.payChannel ? { payChannel: event.payChannel } : {}),
     giftCharacterId,
+    supportCharacterId,
     commercialOfferId,
     chatActionId,
     requestedGiftCategory:
@@ -228,6 +235,7 @@ export const loadingCachedPlansState =
       input: ({ context }) => ({
         catalog: context.planCatalog,
         commercialOfferId: context.commercialOfferId,
+        supportCharacterId: context.supportCharacterId,
       }),
       onDone: [
         {
@@ -247,6 +255,7 @@ export const loadingPlansState = catalogMachineSetup.createStateConfig({
       input: ({ context }) => ({
         catalog: context.planCatalog,
         commercialOfferId: context.commercialOfferId,
+        supportCharacterId: context.supportCharacterId,
     }),
     onDone: {
       target: "ready",
@@ -265,6 +274,7 @@ export const refreshingPlansState = catalogMachineSetup.createStateConfig({
     input: ({ context }) => ({
       catalog: context.planCatalog,
       commercialOfferId: context.commercialOfferId,
+      supportCharacterId: context.supportCharacterId,
     }),
     onDone: {
       target: "ready",

src/stores/payment/machine/order-flow.ts

@@ -192,8 +192,14 @@ const creatingOrderState = paymentMachineSetup.createStateConfig({
       payChannel: context.payChannel,
       autoRenew: context.autoRenew,
       ...(event.type === "PaymentCreateOrderSubmitted" &&
-      event.recipientCharacterId
+      (event.recipientCharacterId || context.supportCharacterId || context.giftCharacterId)
-        ? { recipientCharacterId: event.recipientCharacterId }
+        ? {
+            recipientCharacterId:
+              event.recipientCharacterId ||
+              context.supportCharacterId ||
+              context.giftCharacterId ||
+              undefined,
+          }
         : {}),
       ...(context.commercialOfferId
         ? { commercialOfferId: context.commercialOfferId }

src/stores/payment/payment-state.ts

@@ -17,6 +17,7 @@ export interface PaymentState {
   giftCategories: readonly GiftCategory[];
   giftProducts: readonly GiftProduct[];
   giftCharacterId: string | null;
+  supportCharacterId: string | null;
   selectedGiftCategory: string | null;
   requestedGiftCategory: string | null;
   requestedGiftPlanId: string | null;
@@ -45,6 +46,7 @@ export const initialState: PaymentState = {
   giftCategories: [],
   giftProducts: [],
   giftCharacterId: null,
+  supportCharacterId: null,
   selectedGiftCategory: null,
   requestedGiftCategory: null,
   requestedGiftPlanId: null,