Privacy Policy
Last updated: April 27, 2026
We handle personal information collected through the Service Terumiu (the "Service") in accordance with the Act on the Protection of Personal Information of Japan and other applicable laws, as set out below.
1. Information We Collect
We may collect the following information when providing the Service.
- Account information (email address, display name, identifiers from federated identity providers)
- Profile information (age range, affiliation, interests, and other information voluntarily provided by the User)
- Responses, response timestamps, and result data from assessments
- Access logs, operation history, dwell time, and other usage data
- IP address, browser/OS information, device identifiers, referrers
- Online identifiers such as cookies, web storage, and advertising IDs
2. Purposes of Use
We use the collected information for the following purposes.
- Providing the Service, authenticating Users, generating and displaying assessment results
- Personalizing displayed content and recommendations for each User
- Analyzing usage to improve the quality of the Service and develop new features
- Delivering and measuring advertisements (including personalized advertising)
- Sending important notices, providing support, and responding to inquiries
- Detecting and preventing misuse and ensuring system security
- Responding to requests based on laws or governmental authorities
3. Cookies and Advertising IDs
The Service uses cookies and similar technologies (including those of Google Analytics, Google AdSense, and other ad networks) to analyze usage and deliver advertising. These third parties may use cookies and advertising IDs to collect information about your use of the Service and to deliver interest-based advertising. You can decline cookies in your browser settings or use the opt-out mechanisms provided by each ad network.
4. Sharing with Third Parties
We do not provide personal information to third parties except in the following cases.
- When the User has given consent
- When we entrust handling of personal information to service providers (such as hosting, ad delivery, or analytics vendors) to the extent necessary to operate the Service
- When required by law, or when necessary to protect a person's life, body, or property
- When provided in connection with a business succession (such as a merger, corporate split, or business transfer)
5. Security Measures
We implement reasonable technical and organizational measures to prevent the leakage, loss, or damage of the personal information we collect.
6. Outsourcing and Cross-Border Transfers
We may entrust handling of personal information to service providers. When such providers are located outside Japan, we take appropriate safeguards in light of the data protection regime of the relevant country.
7. Retention Period
We retain personal information for the period necessary to achieve the purposes of use. Once the purposes have been achieved or any retention period required by law has expired, we will delete or anonymize the information within a reasonable period.
8. Disclosure, Correction, and Suspension of Use
Users may request disclosure, correction, addition, deletion, suspension of use, or suspension of provision to third parties of their personal information held by us. Please contact us using the contact information at the end of this Policy for the request procedure and identity verification.
9. Personal Information of Minors
We do not knowingly collect personal information from children under 13. Users aged 13 or older but under 18 must use the Service with the consent of a parent or legal guardian, and we strive to explain our use and scope of personal information in a manner understandable to minors.
10. Changes to This Policy
We may revise this Policy as necessary in response to changes in laws, the Service, or otherwise. Revised versions become effective when posted on the Service.
11. Contact
Inquiries and requests regarding this Policy are handled by the Terumiu Operations Office via the contact form.