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Privacy Policy

This Privacy Policy (hereinafter referred to as "this Policy") sets forth the handling of users' personal information in the service " Namakeru " provided by the developer Kubota Masataka (hereinafter referred to as "we").

By downloading or using this service, users are deemed to have agreed to the contents of this Policy.

Article 1: Definition of Personal Information

"Personal information" means information about a living individual as defined in the Act on the Protection of Personal Information.

Specifically, it refers to information that can identify a specific individual by description such as name, date of birth, address, phone number, contact details, etc.

It also includes personal identification information such as appearance, fingerprints, voiceprints, health insurance numbers, and the like.

Article 2: Collection of Personal Information

We may collect personal information in the following cases:

  1. Information provided when the user registers for use (e.g., email address, date of birth, gender, etc.)
  2. Transaction records and payment information with partners (such as payment service providers)
  3. Information corresponding to the plan selected by the user at the time of registration
  4. User's device information (OS type, device ID, IP address, device type, user agent, device settings, etc.)

Article 3: Purpose of Use of Personal Information

We use the collected personal information for the following purposes:

  1. Provision and operation of this service
  2. Responding to inquiries from users (including identity verification)
  3. Maintenance and communication of important matters
  4. Identification and suspension of users who violate terms or misuse the service
  5. Billing for paid services
  6. Research and analysis for service improvement and new feature development
    • Creation of statistical data based on user attributes (such as date of birth, gender, etc.)
    • Analysis of service usage
  7. Purposes incidental to the above uses

Article 4: Changes to Purpose of Use

We may change the purpose of use of personal information only in the following cases:

  • When it is reasonably recognized that the changed purpose is related to the original purpose

The changed purpose will be notified appropriately to users or made public within the service.

Article 5: Provision of Personal Information to Third Parties

We will not provide personal information to third parties without the user's consent, except in the following cases:

  1. Based on laws and regulations
  2. When necessary to protect human life, body, or property
  3. When necessary to improve public health or promote the sound upbringing of children
  4. When cooperating with national or local government agencies or their entrusted parties

However, the following do not constitute third-party provision:

  • When personal information handling is outsourced within the scope of the purpose of use
  • When personal information is provided due to business succession (including business transfer, merger, split, etc.)
    • In this case, the successor will be required to properly manage the personal information.
  • When shared use is notified or made public with necessary details

If a user wishes to refuse third-party provision, please notify us by the following methods:

  • Set refusal in the settings page within the service
  • Contact us via email at the inquiry desk

Article 6: Suspension of Use of Personal Information

If a user requests suspension or deletion of personal information, we will promptly investigate and take appropriate action.

However, if suspension or deletion incurs significant costs or is difficult to implement, alternative measures will be considered.

Article 7: Changes to the Privacy Policy

We may change the contents of this Policy as necessary.

The changed contents will take effect when published on the service.

If the changes are significant, users will be notified in advance and their consent will be obtained.

Notification methods include messages within the service, emails, or publication on our website.

Article 8: Contact Information

For inquiries regarding this service, please use the following contact information.


Effective Date: Sep 9, 2025
Last Updated: Sep 9, 2025