diff --git a/src/Site/Controller/Home.php b/src/Site/Controller/Home.php
index 4d58b93..92bd11c 100644
--- a/src/Site/Controller/Home.php
+++ b/src/Site/Controller/Home.php
@@ -4,6 +4,7 @@ namespace Site\Controller;
 use Site\Controller\BlogPost;
 use Site\Controller\Mods;
 use Site\Lib\Activitypub;
+use Site\Lib\Auth;
 use Site\Lib\Markdown;
 use Site\Lib\Template;
 
@@ -56,6 +57,11 @@ class Home extends BlogPost {
         $postsPerPage
       );
 
+      // ユーザー
+      $auth = new Auth();
+      $user = $auth->getLoggedInUser();
+      $tmpl->assign('user', $user);
+
       $tmpl->assign('currentPage', $page);
       $tmpl->assign('totalPages', $totalPages);
       $tmpl->assign('posts', $currentPosts);
@@ -104,6 +110,11 @@ class Home extends BlogPost {
         $meta->title = $this->highlightTextContent($meta->title, $keywords);
       }
 
+      // ユーザー
+      $auth = new Auth();
+      $user = $auth->getLoggedInUser();
+      $tmpl->assign('user', $user);
+
       $tmpl->assign('pagetit', $pagetit);
       $tmpl->assign('curPage', 'blog');
       $tmpl->assign('custCss', false);
diff --git a/src/Site/Controller/Page.php b/src/Site/Controller/Page.php
index 6d83354..571dfbe 100644
--- a/src/Site/Controller/Page.php
+++ b/src/Site/Controller/Page.php
@@ -2,6 +2,7 @@
 namespace Site\Controller;
 
 use Site\Controller\Mods;
+use Site\Lib\Auth;
 use Site\Lib\Template;
 
 class Page {
@@ -13,6 +14,11 @@ class Page {
       $pagetit = '新ページ';
       $description = 'PHPフレームワークについて';
 
+      // ユーザー
+      $auth = new Auth();
+      $user = $auth->getLoggedInUser();
+      $tmpl->assign('user', $user);
+
       $tmpl->assign('pagetit', $pagetit);
       $tmpl->assign('curPage', 'about');
       $tmpl->assign('custCss', false);
@@ -31,6 +37,11 @@ class Page {
       $pagetit = 'モネロ（XMR）で支援♡';
       $description = 'テクニカル諏訪子ちゃんをモネロで支援♡';
 
+      // ユーザー
+      $auth = new Auth();
+      $user = $auth->getLoggedInUser();
+      $tmpl->assign('user', $user);
+
       $tmpl->assign('pagetit', $pagetit);
       $tmpl->assign('curPage', 'support');
       $tmpl->assign('custCss', true);
@@ -50,6 +61,11 @@ class Page {
       $pagetit = '秘密のページ';
       $description = 'ケロ';
 
+      // ユーザー
+      $auth = new Auth();
+      $user = $auth->getLoggedInUser();
+      $tmpl->assign('user', $user);
+
       $tmpl->assign('pagetit', $pagetit);
       $tmpl->assign('curPage', 'support');
       $tmpl->assign('custCss', false);
@@ -61,4 +77,4 @@ class Page {
       throw new \Exception($e->getMessage());
     }
   }
-}
\ No newline at end of file
+}
diff --git a/src/Site/Controller/User.php b/src/Site/Controller/User.php
index a567aab..1dace71 100644
--- a/src/Site/Controller/User.php
+++ b/src/Site/Controller/User.php
@@ -72,4 +72,4 @@ class User {
       throw new \Exception($e->getMessage());
     }
   }
-}
\ No newline at end of file
+}
diff --git a/src/Site/Lib/Auth.php b/src/Site/Lib/Auth.php
index 4e6b12f..6e11955 100644
--- a/src/Site/Lib/Auth.php
+++ b/src/Site/Lib/Auth.php
@@ -85,7 +85,7 @@ class Auth {
       $token = bin2hex(random_bytes(64));
       $expire = time() + $this->tokenDuration;
       $newToken = [
-        'token' => password_hash($token, $algo),
+        'token' => $token,
         'ip' => $ip,
         'createDate' => time(),
         'expDate' => $expire,
@@ -151,7 +151,7 @@ class Auth {
     return \Result::success();
   }
 
-  public function isUserExist(?string $username): \Result {
+  public function isUserExist(?string $username = null): \Result {
     if (null === $username) return \Result::Error('エラー：ユーザー名をご入力下さい。');
     $userList = scandir($this->dataDir);
 
@@ -167,7 +167,7 @@ class Auth {
 
   ////////////////////
 
-  private function purgeOldTokens(\stdClass $userData): \stdClass {
+  private function purgeOldTokens(\stdClass $userData): \stdClass|\Result {
     // 有効期限切れたトークンの削除
     $out = $userData;
     $out->tokens = array_filter($userData->tokens, function($t): bool {
@@ -196,8 +196,12 @@ class Auth {
       $path = "{$this->dataDir}{$f}";
       if (!is_file($path)) continue;
       $content = file_get_contents($path);
-      if (str_contains($content, $token)) {
+      if ($token && str_contains($content, $token)) {
         $matches[] = $path;
+        break;
+      } else if (!$token && str_contains($content, '"username": "'.$username.'",')) {
+        $matches[] = $path;
+        break;
       }
     }
     $id = (int)preg_replace('/^(.*?)\.(.*?)$/', "$1", str_replace($this->dataDir, '', $matches[0]));
@@ -277,4 +281,4 @@ class Auth {
 
     return \Result::Success();
   }
-};
\ No newline at end of file
+};