This Policy was revised on December 9, 2025 / v1.2 (previously revised on December 5, 2025 / v1.1; originally established on November 18, 2025 / v1.0)
Translation Notice
The authoritative text is in Japanese. This English version is a reference translation created with machine translation and a light review. If any discrepancies arise, the Japanese version prevails (see the language priority clause in the Terms of Use).
1. Scope of Application
This Privacy Policy (hereinafter referred to as “this Policy”) applies to the handling of personal information and information equivalent to personal information on this website.
In this Policy, “the Site” collectively refers to the following websites:
For external websites linked from the Site, please refer to the respective operators’ privacy policies.
2. Information Collected
The Site may obtain the following types of information:
| Category | Examples | Method of Acquisition |
|---|---|---|
| Inquiry Information | Name, email address, affiliation, subject, message content | Input through contact form |
| Technical / Log Info | Browser type, OS, device info, IP address, access date/time, referrer URL | Automatically recorded in server logs |
| Security Information | Bot-detection tokens such as Cloudflare Turnstile | Acquired through security features |
| Identifiers (Cookies) | Cookies, identifiers stored in local storage | Acquired through browser features |
This information, individually or in combination, may constitute information capable of identifying a specific individual.
3. Purpose of Use
The collected information is primarily used for the following purposes:
- Responding to inquiries and making necessary communications
- Access analysis and statistical analysis to improve the quality and usability of the Site
- Ensuring security, including preventing unauthorized access and spam submissions
- Operation, maintenance, and troubleshooting of the Site
- Creating records and reports required by laws and guidelines
If the Site intends to use information beyond the reasonably relevant scope of the above purposes, we will make efforts to obtain prior consent from the individual.
4. Data Retention
Retention periods for personal information are as follows:
- Inquiry data: counted from completion of the relevant response or closure of the correspondence, retained for up to 12 months.
- Technical/log data and security information: counted from the time the data is recorded, retained for up to 12 months.
If a longer period is required by law or necessary for handling disputes or legal claims, the data may be retained for the minimum period necessary for that purpose, and will be promptly deleted or anonymized thereafter.
5. Use of Cookies and Similar Technologies
The Site may use cookies and browser local storage to improve user convenience and understand browsing patterns.
- Maintaining login status (as a potential future feature)
- Temporarily saving form input
- Statistically understanding browsing tendencies
Users may refuse cookies by adjusting browser settings.
However, disabling cookies may cause some features to function improperly.
6. Access Analytics Tools
The Site may introduce access analytics tools to understand access trends and improve content.
As of this version, analytics tools are not yet deployed; if introduced, the Site will provide a consent banner or equivalent notice with details and opt-out methods.
Details such as the name of the tool, specific information collected, and opt-out methods will be announced separately on the Site upon introduction.
7. Provision to Third Parties
The Site does not provide collected personal information to third parties except in the following cases:
- When the individual has given consent
- When required by law
- When necessary to protect the life, body, or property of a person and obtaining consent is difficult
- When particularly necessary to improve public health or promote the healthy development of children, and obtaining consent is difficult
- When cooperation is necessary for a national or local government organization or its contractor to perform duties as prescribed by law, and obtaining consent may hinder the performance of such duties
8. Provision to Contractors
When the Site outsources operations such as administration, maintenance, or inquiry handling to external service providers, personal information may be provided to the extent necessary.
In such cases, the Site will select appropriate contractors and make efforts to ensure proper management and supervision through confidentiality agreements and other measures.
9. Cross-Border Transfers
When inquiry forms are transmitted via services whose servers are located outside Japan (e.g., Formspree Inc., USA), the Site will identify the destination country and safeguards (e.g., adherence to privacy frameworks, contractual terms comparable to standard contractual clauses, encryption during transfer), obtain the individual’s consent where required, and implement appropriate safeguards consistent with Japan’s APPI (Article 28).
10. Management and Security of Personal Information
To prevent leakage, loss, or damage of personal information, the Site will make efforts to implement the following security measures:
- Technical security measures such as access control and password management
- Proper deletion and disposal of information that is no longer needed
- Implementation of security measures against unauthorized access (firewalls, bot protection, etc.)
When using external services such as cloud services, we confirm their security level and privacy policies before use.
11. Requests for Disclosure, Correction, or Deletion
Upon receiving a request from the individual regarding disclosure, correction, addition, deletion, or suspension of use of their personal information retained by the Site, the Site will respond within a reasonable scope in accordance with applicable laws.
As a general guideline, the Site aims to respond within 14 days where feasible.
However, the Site may not respond to such requests in the following cases:
- When there is a risk of harming the rights or interests of the individual or a third party
- When significant hindrance to the proper operation of the Site may occur
- When responding would violate laws or regulations
12. Compliance with Laws and Revisions to this Policy
The Site complies with the Act on the Protection of Personal Information of Japan and related guidelines.
Where appropriate, the Site also considers international privacy protection frameworks such as the GDPR.
This Policy may be revised without prior notice due to legal amendments or changes in service content.
Revised content will apply from the time it is posted on this page.
13. Operator Information
The Site is operated by a private individual and is not engaged in commercial business activities. Operator details will be disclosed upon request via the contact form, where appropriate.
14. Contact Information
If you have any questions, comments, or requests regarding this Policy, please contact us via the contact form.
Revision History
| Version | Effective Date | Main Changes |
|---|---|---|
| v1.2 | 2025-12-09 | Clarified retention start points and extension conditions; added examples of destination countries and safeguards for cross-border transfers |
| v1.1 | 2025-12-05 | Added translation notice; clarified retention (12 months), analytics status, cross-border transfer, 14-day response, operator info |
| v1.0 | 2025-11-18 | Established |