Privacy Policy / プライバシーポリシー

English

Last Updated: October 27, 2025

1. Information We Collect

When you purchase our products, we collect the following information:

• Email address (for product delivery and customer support)
• Payment information (processed securely through Square)
• Purchase history and transaction details
• Student verification information (for academic discounts)

2. How We Use Your Information

We use your information for:

• Delivering purchased products via email
• Processing payments and preventing fraud
• Providing customer support
• Verifying student status for academic discounts
• Sending important updates about your purchase

3. Information Sharing

We do not sell or rent your personal information. We only share information with:

• Payment processor (Square) for transaction processing
• Email service provider (Resend) for product delivery
• Cloud storage provider (Cloudflare R2) for file hosting

4. Data Retention

We retain your personal information for as long as necessary to provide our services and comply with legal obligations. Purchase records are kept for 7 years in accordance with Japanese tax law requirements.

5. Your Rights

You have the right to:

• Request access to your personal information
• Request correction of inaccurate information
• Request deletion of your information (subject to legal requirements)
• Object to processing of your information

6. Information Disclosure Requests

Upon receiving a valid disclosure request, we will promptly provide the requested information in accordance with applicable laws.

7. Security

We implement appropriate technical and organizational measures to protect your personal information against unauthorized access, alteration, disclosure, or destruction.

8. Contact

For privacy-related inquiries, please contact: sekiguchimiu@gmail.com