Cookie Policy

We use only the cookies required to display the site and run its basic functions. Blocking them prevents features such as sign-in from working.

Authentication cookies and browser local storage keep you signed in. They are removed when you sign out.

Your language choice (Japanese or English) and theme choice (system, light or dark) are stored in browser local storage so they apply on your next visit. This information is not sent anywhere.

We use Google Analytics 4 (Google LLC) analytics cookies to understand how the site is used and improve it. They do not identify you personally. We use no advertising cookies. Analytics cookies are only enabled if you allow them in the consent banner shown on your first visit. You can also block them in your browser settings or with Google's opt-out browser add-on.

Your consent choice is stored in browser local storage, and you can change or withdraw it at any time from the “Cookie settings” link in the footer. You can delete or restrict cookies and local storage in your browser settings. Deleting authentication cookies signs you out, and blocking them may prevent sign-in.