diff --git a/__pycache__/models.cpython-312.pyc b/__pycache__/models.cpython-312.pyc
new file mode 100644
index 0000000..c05f319
Binary files /dev/null and b/__pycache__/models.cpython-312.pyc differ
diff --git a/__pycache__/my_eloquent.cpython-312.pyc b/__pycache__/my_eloquent.cpython-312.pyc
new file mode 100644
index 0000000..a1977ed
Binary files /dev/null and b/__pycache__/my_eloquent.cpython-312.pyc differ
diff --git a/__pycache__/update_db.cpython-312.pyc b/__pycache__/update_db.cpython-312.pyc
new file mode 100644
index 0000000..2e6d0c6
Binary files /dev/null and b/__pycache__/update_db.cpython-312.pyc differ
diff --git a/my_eloquent.py b/my_eloquent.py
index a21efa8..afcf22a 100644
--- a/my_eloquent.py
+++ b/my_eloquent.py
@@ -1,3 +1,10 @@
+# pylint: disable = missing-class-docstring
+# pylint: disable = missing-function-docstring
+
+"""
+みてるぞ式魔改造（言ふほどか?）版 Eloquent
+"""
+
 import eloquent
 
 
@@ -6,6 +13,8 @@ class DatabaseManager (eloquent.DatabaseManager):
 
 
 class Model (eloquent.Model):
+    id: int
+
     def upsert (
             self,
             *args:  str,
@@ -16,5 +25,7 @@ class Model (eloquent.Model):
         row = q.first ()
         if row is not None:
             self.id = row.id
-            self._Model__exists = True # pylint: disable = protected-access
+            # pylint: disable = invalid-name
+            # pylint: disable = attribute-defined-outside-init
+            self._Model__exists = True
         self.save ()
diff --git a/update_db.py b/update_db.py
index 4e8f25b..f80c31d 100644
--- a/update_db.py
+++ b/update_db.py
@@ -59,7 +59,7 @@ def update_tables (
         video_history.video_id = video.id
         video_history.fetched_at = now
         video_history.views_count = datum['viewCounter']
-        video_history.save ()
+        video_history.upsert ()
         video_tags = [video_tag for video_tag in video.video_tags
                                 if video_tag.untagged_at is not None]
         tag: Tag | None