diff --git a/src/components/sva/inputNumber.ts b/src/components/sva/inputNumber.ts
new file mode 100644
index 0000000..5f1d2f1
--- /dev/null
+++ b/src/components/sva/inputNumber.ts
@@ -0,0 +1,61 @@
+import { numberInputAnatomy } from "@ark-ui/react";
+import { sva } from "panda/css";
+
+/**
+ * Ark UI の [Popover コンポーネント](https://ark-ui.com/react/docs/components/popover) の基底スタイル
+ *
+ * 書き方 refs:
+ * - https://panda-css.com/docs/concepts/slot-recipes
+ * - https://ark-ui.com/react/docs/guides/styling#styling-with-panda-css
+ * - https://speakerdeck.com/ikumatadokoro/panda-css-to-ark-ui-dehazimeruge-ren-kai-fa?slide=31
+ */
+export const svaNumberInput = sva({
+  className: "NumberInput",
+  slots: numberInputAnatomy.keys(),
+  base: {
+    root: {
+      width: "100%",
+      margin: "auto",
+      borderRadius: "md",
+      padding: "1rem",
+      border: "1px solid",
+      borderColor: "wkb-neutral.900",
+      position: "relative",
+    },
+    label: {
+      fontSize: "sm",
+      fontWeight: "bold",
+      position: "absolute",
+      top: "-1.5rem",
+    },
+    input: {
+      color: "wkb-neutral.900",
+      rounded: "md",
+      shadow: "md",
+      width: "100%",
+      p: "1rem",
+      textAlign: "left",
+    },
+    incrementTrigger: {
+      bg: "wkb-neutral.900",
+      rounded: "md",
+      shadow: "md",
+    },
+    decrementTrigger: {
+      bg: "wkb-neutral.900",
+      rounded: "md",
+      shadow: "md",
+    },
+    control: {
+      display: "flex",
+      flexDirection: "column",
+      position: "absolute",
+      right: "0",
+      top: "0",
+      bottom: "0",
+      justifyContent: "space-between",
+      bg: "wkb-neutral.100",
+      color: "wkb-neutral.900",
+    },
+  },
+});
diff --git a/src/lib/classes/user.ts b/src/lib/classes/user.ts
index 18e33f7..f60178b 100644
--- a/src/lib/classes/user.ts
+++ b/src/lib/classes/user.ts
@@ -36,9 +36,11 @@ export class User {
 
   static async signIn(): Promise<void> {
     match(
-      await supabase.auth.signInWithPassword({
-        email: "user01@example.com",
-        password: "password",
+      await supabase.auth.signInWithOAuth({
+        provider: "google",
+        options: {
+          redirectTo: `${document.location.origin}/user/auth`,
+        },
       }),
     ).with(S.Error, ({ error }) => {
       notifyErrorInToast("User.signIn", error, "サインインに失敗しました");
diff --git a/src/routes/user/index.tsx b/src/routes/user/index.tsx
index c58c11c..eab5e0b 100644
--- a/src/routes/user/index.tsx
+++ b/src/routes/user/index.tsx
@@ -1,16 +1,18 @@
+import { Field, NumberInput } from "@ark-ui/react";
 import { Icon } from "@iconify/react";
-import { type Session } from "@supabase/supabase-js";
 import { createFileRoute } from "@tanstack/react-router";
 import { useSetAtom } from "jotai";
-import { styled as p, VStack } from "panda/jsx";
-import { type ReactElement } from "react";
+import { Grid, styled as p, VStack } from "panda/jsx";
+import { useState, type ReactElement } from "react";
 import { z } from "zod";
 import { IconText } from "@/components/IconText";
 import { Button } from "@/components/cva/Button";
 import { Expanded } from "@/components/cva/Expanded";
-import { useSession } from "@/hooks/useSession";
+import { svaNumberInput } from "@/components/sva/numberInput";
+import { svaTextArea } from "@/components/sva/textArea";
 import { User } from "@/lib/classes/user";
 import { $redirectTo } from "@/lib/stores/redirect";
+import { notifyTableErrorInToast } from "@/lib/utils/table";
 
 export const Route = createFileRoute("/user/")({
   validateSearch: (s) =>
@@ -20,24 +22,183 @@ export const Route = createFileRoute("/user/")({
       })
       .parse(s),
   component: () => {
-    const { session } = useSession();
+    const { session } = Route.useRouteContext();
+
+    if (session == null) return <NotAuthenticated />;
+    const user = new User(session);
 
     return session != null ? (
-      <Authenticated session={session} />
+      <Authenticated user={user} />
     ) : (
       <NotAuthenticated />
     );
   },
 });
 
-function Authenticated({ session }: { session: Session }): ReactElement {
-  const { metadata } = new User(session);
+function Authenticated({ user }: { user: User }): ReactElement {
+  const [selected, setSelected] = useState<"sower" | "sponsor" | null>();
+  const [age, setAge] = useState(0);
+  const [description, setDescription] = useState("");
+  const numberInput = svaNumberInput();
+  const textArea = svaTextArea();
 
   return (
     <Expanded items="center">
-      <VStack>
-        <p.p>ログインしました！</p.p>
-        <p.p>{metadata.name}</p.p>
+      <VStack gap="10" p="10">
+        {selected == null && (
+          <>
+            <p.span fontSize="xl" fontWeight="bold">
+              アカウントタイプを選択して下さい
+            </p.span>
+            <Grid
+              gap="4"
+              gridTemplate={{ base: "1fr", md: "1fr / repeat(2, 1fr)" }}
+            >
+              <Button
+                h="300px"
+                onClick={() => {
+                  setSelected("sower");
+                }}
+                variant="outlined"
+                w="300px"
+              >
+                <VStack gap="2">
+                  <IconText
+                    icon="bi:person-circle"
+                    iconProps={{ height: "3em" }}
+                  >
+                    <p.p fontSize="lg" fontWeight="bold">
+                      市民としてログイン
+                    </p.p>
+                  </IconText>
+                  <p.p fontSize="xs">
+                    スマートシティーに住む住人として意見を発言､プロジェクトの支援のためにこのサービスを使う
+                  </p.p>
+                </VStack>
+              </Button>
+              <Button
+                h="300px"
+                onClick={() => {
+                  setSelected("sponsor");
+                }}
+                variant="outlined"
+                w="300px"
+              >
+                <VStack gap="2">
+                  <IconText icon="bi:building" iconProps={{ height: "3em" }}>
+                    <p.p fontSize="lg" fontWeight="bold">
+                      企業としてログイン
+                    </p.p>
+                  </IconText>
+                  <p.p fontSize="xs">
+                    スマートシティーに企業として参入するためにこのサービスを使う
+                  </p.p>
+                </VStack>
+              </Button>
+            </Grid>
+          </>
+        )}
+        {selected === "sower" && (
+          <>
+            <p.span>年齢を入力して下さい</p.span>
+            <p.div h="100px" w="300px">
+              <NumberInput.Root
+                allowMouseWheel
+                className={numberInput.root}
+                max={200}
+                min={0}
+              >
+                <NumberInput.Input
+                  className={numberInput.input}
+                  onChange={(e) => {
+                    setAge(Number(e.target.value));
+                  }}
+                />
+                <NumberInput.Control className={numberInput.control}>
+                  <NumberInput.IncrementTrigger
+                    className={numberInput.decrementTrigger}
+                    onClick={() => {
+                      setAge((prev) => prev + 1);
+                    }}
+                  >
+                    <Icon
+                      icon="material-symbols:keyboard-arrow-up-rounded"
+                      width="30px"
+                    />
+                  </NumberInput.IncrementTrigger>
+                  <NumberInput.DecrementTrigger
+                    className={numberInput.incrementTrigger}
+                    onClick={() => {
+                      setAge((prev) => prev - 1);
+                    }}
+                  >
+                    <Icon
+                      icon="material-symbols:keyboard-arrow-down-rounded"
+                      width="30px"
+                    />
+                  </NumberInput.DecrementTrigger>
+                </NumberInput.Control>
+              </NumberInput.Root>
+            </p.div>
+            <Button
+              h="100px"
+              onClick={() => {
+                void user
+                  .registerAsASower({
+                    user_id: user.id,
+                    name: user.metadata.name ?? "名無し",
+                    birthday: `${new Date().getFullYear() - age}-10-05T14:48:00.000Z`,
+                  })
+                  .mapErr(notifyTableErrorInToast("User.registerAsASower"));
+              }}
+              variant="outlined"
+              w="300px"
+            >
+              <VStack gap="2">
+                <IconText icon="bi:person-circle" iconProps={{ height: "3em" }}>
+                  <p.p fontSize="lg" fontWeight="bold">
+                    市民としてログイン
+                  </p.p>
+                </IconText>
+              </VStack>
+            </Button>
+          </>
+        )}
+        {selected === "sponsor" && (
+          <>
+            <p.span>企業の説明を入力して下さい</p.span>
+            <Field.Root className={textArea.root}>
+              <Field.Textarea
+                className={textArea.textarea}
+                onChange={(e) => {
+                  setDescription(e.target.value);
+                }}
+                value={description}
+              />
+            </Field.Root>
+            <Button
+              h="100px"
+              onClick={() => {
+                void user.registerAsASponsor({
+                  user_id: user.id,
+                  name: user.metadata.name,
+                  icon: user.metadata.picture,
+                  description,
+                });
+              }}
+              variant="outlined"
+              w="300px"
+            >
+              <VStack gap="2">
+                <IconText icon="bi:building" iconProps={{ height: "3em" }}>
+                  <p.p fontSize="lg" fontWeight="bold">
+                    企業としてログイン
+                  </p.p>
+                </IconText>
+              </VStack>
+            </Button>
+          </>
+        )}
       </VStack>
     </Expanded>
   );
@@ -54,7 +215,7 @@ function NotAuthenticated(): ReactElement {
         <p.p>まずはログインしてみましょう！</p.p>
         <Button
           onClick={() => {
-            setRedirectTo(redirectTo ?? "/");
+            setRedirectTo(redirectTo ?? "/user");
             void User.signIn();
           }}
           variant="filled"