diff --git a/src/pages/auth/login.tsx b/src/pages/auth/login.tsx
index d879c98..1b5c4e6 100644
--- a/src/pages/auth/login.tsx
+++ b/src/pages/auth/login.tsx
@@ -1,15 +1,16 @@
 import { yupResolver } from "@hookform/resolvers/yup";
 import { LoadingButton } from "@mui/lab";
-import { AppBar, Box, Grid, Stack, Typography } from "@mui/material";
+import { Box, Stack, Typography } from "@mui/material";
 import { PageID } from "codes/page";
 import InputAlert from "components/form/InputAlert";
 import { FormProvider, RHFTextField } from "components/hook-form";
 import useAuth from "hooks/useAuth";
 import useNavigateCustom from "hooks/useNavigateCustom";
 import useSnackbarCustom from "hooks/useSnackbarCustom";
-import { useState } from "react";
+import { useEffect, useState } from "react";
 import { useForm } from "react-hook-form";
 import { getPath } from "routes/path";
+import { StoreId, setStore } from "storage/localstorage";
 import * as Yup from "yup";
 
 type FormProps = {
@@ -56,6 +57,10 @@ export default function Login() {
     }
   };
 
+  useEffect(() => {
+    setStore(StoreId.LOGIN_ROUTE, true);
+  }, []);
+
   return (
     <FormProvider methods={form} onSubmit={form.handleSubmit(handleSubmit)}>
       <Box sx={{ p: 3, pt: 5, mx: "auto", maxWidth: 500 }} textAlign="center">
diff --git a/src/pages/common/Page404.tsx b/src/pages/common/Page404.tsx
index 7766d71..d87104d 100644
--- a/src/pages/common/Page404.tsx
+++ b/src/pages/common/Page404.tsx
@@ -1,5 +1,21 @@
 import { Box } from "@mui/material";
+import { PageID } from "codes/page";
+import useNavigateCustom from "hooks/useNavigateCustom";
+import { useEffect } from "react";
+import { getPath } from "routes/path";
+import { StoreId, getStore } from "storage/localstorage";
 
 export default function Page404() {
+  const { navigateWhenChanged } = useNavigateCustom();
+
+  // ログインページにアクセス経験ある場合は、ログインページへ遷移させる
+  useEffect(() => {
+    const canLoginRoute = !!getStore(StoreId.LOGIN_ROUTE);
+
+    if (canLoginRoute) {
+      navigateWhenChanged(getPath(PageID.LOGIN));
+    }
+  }, []);
+
   return <Box>NotFound.</Box>;
 }
diff --git a/src/storage/localstorage/index.ts b/src/storage/localstorage/index.ts
new file mode 100644
index 0000000..1252a0f
--- /dev/null
+++ b/src/storage/localstorage/index.ts
@@ -0,0 +1,18 @@
+let id = 0;
+export const StoreId = {
+  LOGIN_ROUTE: "LOGIN_ROUTE",
+} as const;
+export type StoreId = (typeof StoreId)[keyof typeof StoreId];
+
+export const getStore = (id: StoreId): string | null => {
+  return localStorage.getItem(id);
+};
+export const setStore = (id: StoreId, data: any) => {
+  localStorage.setItem(id, data);
+};
+export const removeStore = (id: StoreId) => {
+  localStorage.removeItem(id);
+};
+export const clearStore = () => {
+  localStorage.clear();
+};