Privacy Policy

KOUSOU 0 uses Google Analytics 4 (GA4) to measure site usage for service-improvement purposes. We collect the following information.

• Page views and URLs of pages visited
• Time on site and navigation paths within the site
• Approximate location of access (prefecture / country level)
• Device type and browser type

All of the above is aggregated, anonymized information. We do not collect information that identifies a specific individual.

KOUSOU 0 uses cookies to enable Google Analytics 4. Cookies are small text files stored by your browser; they are not used to personally identify visitors.

Google Consent Mode v2: To manage visitor consent, the cookie banner offers the following toggles. Storage access is granted only after "Accept" is selected.

• analytics_storage: cookie storage for site analytics (GA4)
• functionality_storage: cookie storage for maintaining site functionality
• security_storage: cookie storage for security purposes
• ad_storage / ad_user_data / ad_personalization: advertising-related consent flags (KOUSOU 0 does not currently serve advertising, but these flags are transmitted as required by Consent Mode v2 — they are kept in reserve in case Google Ad Grants or similar are considered later)

You can disable cookies via your browser settings, although some site functions may stop working correctly.

If you want to opt out of Google Analytics tracking, please use the Google Analytics Opt-out Browser Add-on.

KOUSOU 0 does not collect personally identifying information such as name, email address, or postal address.

When you contact us, any name, email, or other information you include in your message is used solely to respond to your inquiry and for no other purpose.

Data retention: information received via our contact form is retained for one year after the final reply, and then deleted. GA4 access logs are retained for 14 months (Google's default setting).

User rights: under Japan's Act on the Protection of Personal Information, you may request access to, correction of, or deletion of personal data we hold. Please submit requests via the contact form. We respond within two weeks as a rule.

KOUSOU 0 transmits collected information to the following third-party services. All of them are used to the extent necessary for analytics or operations and not for personally identifying users.

• Google LLC: Google Analytics 4 analytics data ( Google Privacy Policy)
• Functional Software, Inc. (Sentry): JavaScript error reports generated on this site are sent to the error-monitoring service Sentry. The URL where the error occurred, browser information, and the error stack trace are transmitted. The data is used solely to improve site quality ( Sentry Privacy Policy)
• Vercel Inc.: the hosting provider for this site (IP addresses, request logs, etc.). Processed in accordance with Vercel's terms ( Vercel Privacy Policy)

We do not sell, transfer, or disclose collected information to any other third party.

This privacy policy may change without prior notice in response to legal changes or service changes. The updated policy takes effect once it is posted on this page.

Operator Information (Disclosure under Japan's Amended Personal Information Protection Act)

We disclose the operator information and the personal information protection manager as required by Japan's Act on the Protection of Personal Information.

• Operator: Institute for Social Vision Design (ISVD), a Japanese general incorporated association
• Address: Hakusan, Bunkyo-ku, Tokyo (detailed address provided via the contact form)
• Representative: Naoya Yokota, Representative Director
• Personal Information Protection Manager: Naoya Yokota, Representative Director (contact via contact form / ISVD Editorial Committee)

Contact

For privacy-related questions, please contact us via the following channel.

Email: contact form

Operator: Institute for Social Vision Design (ISVD), a Japanese general incorporated association

* The governing law of this Privacy Policy is the law of Japan. This English translation is provided for reference; in the event of any conflict, the Japanese version (/privacy) prevails.