diff --git a/app/Models/City.php b/app/Models/City.php
index 045f975..97cb3b1 100644
--- a/app/Models/City.php
+++ b/app/Models/City.php
@@ -7,11 +7,17 @@ use Illuminate\Database\Eloquent\Model;
 class City extends Model
 {
     protected $table = 'city';
-    // プライマリーキーはLaravelのデフォルト('id')を使用
     public $timestamps = true;
 
+    protected $primaryKey = 'city_id'; 
     protected $fillable = [
-        // 実際のカラム名が不明のため、一旦空にする
+        'city_id',
+        'city_name',
+        'print_layout',
+        'city_user',
+        'city_remarks',
+        'created_at',
+        'updated_at',
     ];
 
     /**
@@ -21,4 +27,8 @@ class City extends Model
     {
         return self::all();
     }
+    
+    
+    
+
 }