Privacy Policy

1. Collection of Personal Information

The Service appropriately collects personal information such as users' email addresses through Google Login and email login.

2. Purpose of Use

The collected information is used for service provision, user authentication, facility management, user support, fraud prevention, statistical analysis, and service improvement.

3. Provision to Third Parties

Personal information will not be provided to third parties except as required by law.

4. Integration with External Services

The Service integrates with external services such as Google Analytics, Google Tag Manager, Google AdSense, and A8.net. Data collected through these tools may be used for service improvement, advertisement delivery, and usage analysis.

5. Use of Cookies

Cookies are used to improve user experience and analyze traffic. Users can disable cookies via browser settings.

6. Management of Personal Information

Personal information is securely stored in databases such as Supabase and protected against unauthorized access, leaks, or alterations through appropriate access control.

7. Correction and Deletion

Users may request corrections or deletions of their personal information at any time by contacting us through the inquiry form.

8. Policy Revisions

The Service may revise this policy as necessary. Changes will be announced on the website.

9. Handling of Payment Information

Paid membership and Site Supporters are processed via Stripe or similar payment providers. Credit card information is not stored by the Service and is securely handled according to the payment processor’s security policies.

10. Handling of Sponsor Information

Display names and messages submitted via Site Supporter will be shown on the sponsors page only with the user’s consent. Users can choose not to display their name/message.

Last Updated：May 20, 2025