diff --git a/apps/timo-web/api/generated/endpoints/focus/focus.ts b/apps/timo-web/api/generated/endpoints/focus/focus.ts
index 26989958..0c767fec 100644
--- a/apps/timo-web/api/generated/endpoints/focus/focus.ts
+++ b/apps/timo-web/api/generated/endpoints/focus/focus.ts
@@ -10,7 +10,7 @@ import { useQuery } from "@tanstack/react-query";
 import { customInstance } from "../../../client/custom-instance";
 
 import type { ErrorType } from "../../../client/custom-instance";
-import type { ErrorDto, FocusTodoResponse } from "../../models";
+import type { BaseResponseFocusTodoResponse, ErrorDto } from "../../models";
 import type {
   DataTag,
   DefinedInitialDataOptions,
@@ -57,7 +57,7 @@ export const getFocusTodo = (
   options?: SecondParameter<typeof customInstance>,
   signal?: AbortSignal,
 ) => {
-  return customInstance<FocusTodoResponse>(
+  return customInstance<BaseResponseFocusTodoResponse>(
     { url: `/api/v1/focus`, method: "GET", signal },
     options,
   );
diff --git a/apps/timo-web/api/generated/endpoints/focus/focus.zod.ts b/apps/timo-web/api/generated/endpoints/focus/focus.zod.ts
index d403820a..814851cc 100644
--- a/apps/timo-web/api/generated/endpoints/focus/focus.zod.ts
+++ b/apps/timo-web/api/generated/endpoints/focus/focus.zod.ts
@@ -18,32 +18,38 @@ import * as zod from "zod";
  * @summary 집중 모드 TODO 조회
  */
 export const GetFocusTodoResponse = zod.object({
-  date: zod.iso.date(),
-  dayOfWeek: zod.enum(["MON", "TUE", "WED", "THU", "FRI", "SAT", "SUN"]),
-  hasTodo: zod.boolean(),
-  todo: zod
+  status: zod.number().optional(),
+  message: zod.string().optional(),
+  data: zod
     .object({
-      todoId: zod.number(),
-      icon: zod.string().optional(),
-      title: zod.string(),
-      completed: zod.boolean(),
-      durationSeconds: zod.number().optional(),
-      priority: zod.string().optional(),
-      tag: zod
+      date: zod.iso.date(),
+      dayOfWeek: zod.enum(["MON", "TUE", "WED", "THU", "FRI", "SAT", "SUN"]),
+      hasTodo: zod.boolean(),
+      todo: zod
         .object({
-          tagId: zod.number(),
-          name: zod.string(),
+          todoId: zod.number(),
+          icon: zod.string().optional(),
+          title: zod.string(),
+          completed: zod.boolean(),
+          durationSeconds: zod.number().optional(),
+          priority: zod.string().optional(),
+          tag: zod
+            .object({
+              tagId: zod.number(),
+              name: zod.string(),
+            })
+            .optional(),
+          isRepeated: zod.boolean(),
+          memo: zod.string().optional(),
+          subtasks: zod.array(
+            zod.object({
+              subtaskId: zod.number(),
+              content: zod.string(),
+              completed: zod.boolean(),
+            }),
+          ),
         })
         .optional(),
-      isRepeated: zod.boolean(),
-      memo: zod.string().optional(),
-      subtasks: zod.array(
-        zod.object({
-          subtaskId: zod.number(),
-          content: zod.string(),
-          completed: zod.boolean(),
-        }),
-      ),
     })
     .optional(),
 });
diff --git a/apps/timo-web/api/generated/models/index.ts b/apps/timo-web/api/generated/models/index.ts
index e632f371..3e76db97 100644
--- a/apps/timo-web/api/generated/models/index.ts
+++ b/apps/timo-web/api/generated/models/index.ts
@@ -16,6 +16,7 @@ export * from "./baseResponseCalendarAuthorizeResponse";
 export * from "./baseResponseCalendarConnectResponse";
 export * from "./baseResponseCalendarDisconnectResponse";
 export * from "./baseResponseCalendarEventsResponse";
+export * from "./baseResponseFocusTodoResponse";
 export * from "./baseResponseHomeResponse";
 export * from "./baseResponseListTimeBoxResponse";
 export * from "./baseResponseObject";
diff --git a/apps/timo-web/app/[locale]/(main)/(with-time-sidebar)/home/_containers/HomeTodoContainer.tsx b/apps/timo-web/app/[locale]/(main)/(with-time-sidebar)/home/_containers/HomeTodoContainer.tsx
index 208eba98..efa73bef 100644
--- a/apps/timo-web/app/[locale]/(main)/(with-time-sidebar)/home/_containers/HomeTodoContainer.tsx
+++ b/apps/timo-web/app/[locale]/(main)/(with-time-sidebar)/home/_containers/HomeTodoContainer.tsx
@@ -98,9 +98,7 @@ export const HomeTodoContainer = () => {
   }, [isWeekView, scrollRef]);
 
   const plannedMinutes = activeTimer
-    ? convertDurationToMinutes(
-        activeTimer.plannedSeconds + activeTimer.extendedSeconds,
-      )
+    ? convertDurationToMinutes(activeTimer.plannedSeconds)
     : 0;
   const actualMinutes = activeTimer
     ? convertDurationToMinutes(activeTimer.elapsedSeconds)
diff --git a/apps/timo-web/app/[locale]/(main)/(with-time-sidebar)/today/_containers/TodayTodoListContainer.tsx b/apps/timo-web/app/[locale]/(main)/(with-time-sidebar)/today/_containers/TodayTodoListContainer.tsx
index 7f568744..c878be44 100644
--- a/apps/timo-web/app/[locale]/(main)/(with-time-sidebar)/today/_containers/TodayTodoListContainer.tsx
+++ b/apps/timo-web/app/[locale]/(main)/(with-time-sidebar)/today/_containers/TodayTodoListContainer.tsx
@@ -83,9 +83,7 @@ export const TodayTodoListContainer = () => {
   const completedCount = todos.filter((todo) => todo.completed).length;
 
   const plannedMinutes = activeTimer
-    ? convertDurationToMinutes(
-        activeTimer.plannedSeconds + activeTimer.extendedSeconds,
-      )
+    ? convertDurationToMinutes(activeTimer.plannedSeconds)
     : 0;
   const actualMinutes = activeTimer
     ? convertDurationToMinutes(activeTimer.elapsedSeconds)
diff --git a/apps/timo-web/app/[locale]/(main)/focus/_containers/FocusSessionContainer.tsx b/apps/timo-web/app/[locale]/(main)/focus/_containers/FocusSessionContainer.tsx
index 39feabbb..ff5cf58e 100644
--- a/apps/timo-web/app/[locale]/(main)/focus/_containers/FocusSessionContainer.tsx
+++ b/apps/timo-web/app/[locale]/(main)/focus/_containers/FocusSessionContainer.tsx
@@ -121,7 +121,7 @@ export const FocusSessionContainer = () => {
             ref={focusSessionState.timerSessionControlsRef}
             isRunning={focusSessionState.isRunning}
             onTogglePlay={focusSessionActions.onTogglePlay}
-            plannedMinutes={focusSessionState.plannedMinutes}
+            plannedMinutes={focusSessionState.basePlannedMinutes}
             actualMinutes={focusSessionState.actualMinutes}
             feedbackText={feedbackText}
             isTimeUp={focusSessionState.isTimeUp}
diff --git a/apps/timo-web/app/[locale]/(main)/focus/_hooks/use-focus-session.ts b/apps/timo-web/app/[locale]/(main)/focus/_hooks/use-focus-session.ts
index 66230d81..7de03803 100644
--- a/apps/timo-web/app/[locale]/(main)/focus/_hooks/use-focus-session.ts
+++ b/apps/timo-web/app/[locale]/(main)/focus/_hooks/use-focus-session.ts
@@ -236,6 +236,10 @@ export const useFocusSession = ({
         )
       : 0;
   const plannedMinutes = convertDurationToMinutes(plannedSeconds);
+  // 완료 모달의 "계획"은 연장 시간을 제외한 순수 계획 시간만 보여줘야 한다
+  const basePlannedMinutes = convertDurationToMinutes(
+    timer ? timer.plannedSeconds : (todo?.durationSeconds ?? 0),
+  );
   const actualMinutes = convertDurationToMinutes(timer?.elapsedSeconds ?? 0);
 
   return {
@@ -253,6 +257,7 @@ export const useFocusSession = ({
       isOvertime,
       overtimeProgress,
       plannedMinutes,
+      basePlannedMinutes,
       actualMinutes,
     },
     focusSessionActions: {
diff --git a/apps/timo-web/app/[locale]/(main)/focus/_queries/use-focus-todo-query.ts b/apps/timo-web/app/[locale]/(main)/focus/_queries/use-focus-todo-query.ts
index 5e4d597e..d0329ca0 100644
--- a/apps/timo-web/app/[locale]/(main)/focus/_queries/use-focus-todo-query.ts
+++ b/apps/timo-web/app/[locale]/(main)/focus/_queries/use-focus-todo-query.ts
@@ -12,5 +12,5 @@ export const useFocusTodoQuery = () =>
   useSuspenseQuery({
     queryKey: getGetFocusTodoQueryKey(),
     queryFn: ({ signal }) => getFocusTodo(undefined, signal),
-    select: (data) => focusViewSchema.parse(data),
+    select: ({ data }) => focusViewSchema.parse(data),
   });
diff --git a/apps/timo-web/components/layout/sidebar/time/TimerPanel.tsx b/apps/timo-web/components/layout/sidebar/time/TimerPanel.tsx
index 10ca10f6..2f4bc03d 100644
--- a/apps/timo-web/components/layout/sidebar/time/TimerPanel.tsx
+++ b/apps/timo-web/components/layout/sidebar/time/TimerPanel.tsx
@@ -157,6 +157,10 @@ export const TimerPanel = () => {
         )
       : 0;
   const plannedMinutes = convertDurationToMinutes(plannedSeconds);
+  // 완료 모달의 "계획"은 연장 시간을 제외한 순수 계획 시간만 보여줘야 한다
+  const basePlannedMinutes = convertDurationToMinutes(
+    activeTimer?.plannedSeconds ?? 0,
+  );
   const actualMinutes = convertDurationToMinutes(
     activeTimer?.elapsedSeconds ?? 0,
   );
@@ -177,7 +181,7 @@ export const TimerPanel = () => {
         ref={timerSessionControlsRef}
         isRunning={isRunning}
         onTogglePlay={handleTogglePlay}
-        plannedMinutes={plannedMinutes}
+        plannedMinutes={basePlannedMinutes}
         actualMinutes={actualMinutes}
         feedbackText={feedbackText}
         isTimeUp={isTimeUp}