Privacy Policy

Ryukakusan Co., Ltd. (hereinafter referred to as "the Company") recognizes the importance of protecting personal information. The Company will handle personal information from customers carefully and take necessary and proper measures to protect their privacy.

1. Acquisition of Personal Information

The Company will acquire personal information by legal and fair means.

2. Use of Personal Information

The Company will use personal information within the scope of the purpose indicated at the time of acquisition and will use this information as long as it is necessary to perform activities.

3. Provision of Personal Information to Third Parties

The Company will not provide personal information to a third party without the prior consent of the individual concerned, unless otherwise provided by laws and regulations.

4. Safe Management of Personal Information

The Company will maintain the accuracy of personal data and manage such information safely.
The Company will take appropriate information security measures against unauthorized access, computer viruses, or the like, in order to prevent loss, destruction, falsification, or leakage of personal information.

5. Disclosure, Amendment, Suspension of Use, Deletion, Etc. of Personal Information

If a request is made by an individual for disclosure, amendments, suspension of use, deletion, etc. of their personal data, the Company will respond promptly after confirming that the individual has the right to this information. If you have any comments or questions regarding the handling of personal information by the Company, please contact us via the Personal Information Desk at


6. Compliance with Laws and Regulations Related to Personal Information

The Company will observe the Act on the Protection of Personal Information and other relevant laws and regulations, and will make every effort to protect users' personal information.
The Company implements training for executives and employees regarding the protection and proper management of personal information to ensure that personal information is handled appropriately.

7. Review of Privacy Policy

The Company will continuously review and improve the content of this privacy policy.

Opt-out of Targeted Advertising Services of Partner Companies

Ryukakusan Co., Ltd. (hereinafter referred to as "the Company") uses behavioral targeting advertising services provided by the following companies in order to distribute suitable advertisements to customers. If you wish to disable this, please visit the opt-out page below and follow the procedure.

Check the following items for details of how to opt out of advertisement delivery from identifiers for each OS.
Google Play Help page for the opt-out method on Android devices.
Apple Support page for the opt-out method on devices with iOS14.5 or later versions.
・Opt-out method on devices with earlier versions of iOS14.5 as follows.
 Settings → Privacy → Ads → Limit Ad Tracking

Use of Google Analytics

This website uses Google Analytics to better understand onsite activity. Google Analytics uses cookies to collect information on users.
Users wishing to opt out of information collection by Google Analytics on this website can do so from the opt-out page below.

Google Analytics opt-out link

Ryukakusan Co., Ltd. shall not be liable for any damages caused by the use of the Google Analytics service on this website.