diff --git a/app/src/app/camera/page.tsx b/app/src/app/camera/page.tsx
index 0005bb7..db6935e 100644
--- a/app/src/app/camera/page.tsx
+++ b/app/src/app/camera/page.tsx
@@ -20,7 +20,7 @@ import { PointDialog } from "@/components/view/PointDialog";
 import { shapeCaption } from "@/functions/shapeCaption";
 import { postSimilarity } from "@/functions/simirality";
 import { usePointDialogOpen } from "@/lib/atom";
-import type { ScoreResponse, User, todayAssignment } from "@/types";
+import type { ScoreResponse, DBUser as User, todayAssignment } from "@/types";
 import imageCompression from "browser-image-compression";
 import type React from "react";
 import { useEffect, useRef, useState } from "react";
@@ -107,7 +107,7 @@ const CameraApp = () => {
 				console.error("ユーザー情報が取得できませんでした。");
 				return;
 			}
-			const userInfo = JSON.parse(user);
+			const userInfo: User = JSON.parse(user);
 			setLoginUser(userInfo);
 			const resAssignment = await fetch(
 				`/api/assignment/today?uid=${userInfo?.uid}`,
diff --git a/app/src/app/page.tsx b/app/src/app/page.tsx
index 1c89589..b2697e1 100755
--- a/app/src/app/page.tsx
+++ b/app/src/app/page.tsx
@@ -6,7 +6,12 @@ import { Progress } from "@/components/ui/progress";
 import { PointDialog } from "@/components/view/PointDialog";
 import Timer from "@/components/view/Timer";
 import { useHasShownOnce, usePointDialogOpen } from "@/lib/atom";
-import type { MyScoreDetail, Score, todayAssignment } from "@/types";
+import type {
+	MyScoreDetail,
+	Score,
+	DBUser as User,
+	todayAssignment,
+} from "@/types";
 import Link from "next/link";
 import { useRouter } from "next/navigation";
 import { useEffect, useState } from "react";
@@ -37,7 +42,7 @@ export default function Home() {
 
 			try {
 				// get api/score/me
-				const userData = JSON.parse(userIdString);
+				const userData: User = JSON.parse(userIdString);
 				const uid = userData.uid;
 				if (!uid) {
 					throw new Error("User ID not found");
@@ -111,7 +116,9 @@ export default function Home() {
 
 	const latestAssignment = assignment
 		.filter((item) => item.assignTime)
-		.sort((a, b) => (b.assignTime?.getTime() ?? 0) - (a.assignTime?.getTime() ?? 0))[0];
+		.sort(
+			(a, b) => (b.assignTime?.getTime() ?? 0) - (a.assignTime?.getTime() ?? 0),
+		)[0];
 
 	return (
 		<div className="flex flex-col min-h-screen px-10 py-10 bg-gradient-to-t from-gray-300 via-gray-200 to-gray-50">
diff --git a/app/src/app/user/page.tsx b/app/src/app/user/page.tsx
index 1f4fa75..f659fdf 100644
--- a/app/src/app/user/page.tsx
+++ b/app/src/app/user/page.tsx
@@ -7,7 +7,7 @@ import PlayerRankCard from "@/components/view/user/PlayerRankCard";
 import StatusChangeDialog from "@/components/view/user/StatusChangeDialog";
 import StatusList from "@/components/view/user/StatusList";
 import { useStatusChangeDialog } from "@/lib/atom";
-import type { MyScoreDetail, User } from "@/types";
+import type { MyScoreDetail, DBUser as User } from "@/types";
 import { useEffect, useState } from "react";
 import { FiEdit2 } from "react-icons/fi";
 import { LuClock, LuFlame, LuTrophy } from "react-icons/lu";
@@ -50,9 +50,9 @@ const UserPage = () => {
 	return (
 		<div className="w-screen min-h-screen flex flex-col gap-4 items-center p-4 pt-10 bg-gradient-to-t from-gray-300 via-gray-200 to-gray-50">
 			<div className="flex items-center mb-4">
-				{userData.photoURL ? (
+				{userData.photoUrl ? (
 					<img
-						src={userData.photoURL}
+						src={userData.photoUrl}
 						alt="User Icon"
 						className="w-16 h-16 rounded-full"
 					/>
@@ -80,7 +80,7 @@ const UserPage = () => {
 						) : (
 							<>
 								<span className="text-xl font-bold text-[#333333]">
-									{userData.displayName || "user@example.com"}
+									{userData.name || "user@example.com"}
 								</span>
 								<Button
 									variant={"primary"}
diff --git a/app/src/lib/signInAndUp.ts b/app/src/lib/signInAndUp.ts
index 5663015..56b7dcd 100644
--- a/app/src/lib/signInAndUp.ts
+++ b/app/src/lib/signInAndUp.ts
@@ -1,7 +1,7 @@
-import type { User } from "@/types";
+import type { DBUser, User } from "@/types";
 import type { User as FirebaseUser } from "@firebase/auth";
 
-const storeStorageUser = (user: User) => {
+const storeStorageUser = (user: DBUser) => {
 	localStorage.setItem("userID", JSON.stringify(user));
 };
 
@@ -14,22 +14,18 @@ export const signInOrUp = async (firebaseUser: FirebaseUser) => {
 			},
 		});
 
-		const user: User = {
-			uid: firebaseUser.uid,
-			displayName: firebaseUser.displayName,
-			email: firebaseUser.email,
-			photoURL: firebaseUser.photoURL,
-		};
+		const userData = await res.json();
 
-		if (res.status === 200) {
+		const user: DBUser = { ...userData };
+
+		if (userData) {
 			storeStorageUser(user);
-			const userData = await res.json();
 			if (!userData.experiencePoint) {
 				await createExp(userData.id);
 			}
 			toRoot();
 		} else {
-			await signUp(user);
+			await signUp(firebaseUser);
 		}
 	} catch (error) {
 		console.error("エラーが発生しました:", error);
@@ -46,8 +42,10 @@ const signUp = async (user: User) => {
 			body: JSON.stringify(user),
 		});
 
-		if (res.status === 200) {
-			storeStorageUser(user);
+		const resUser = await res.json();
+
+		if (resUser) {
+			storeStorageUser(resUser);
 			toRoot();
 		} else {
 			throw new Error("ユーザー登録に失敗");