Privacy Policy

Last updated: July 25, 2026

Shikisai 101 (shikisai101.com) (the "Site") recognizes the protection of users' personal information as an important responsibility and sets forth this Privacy Policy as follows.

1. Information We Collect

The Site may collect the following information.

1-1. Information You Provide

Email address provided when subscribing to our newsletter
Name, email address, and message content provided when contacting us
Responses to on-site surveys (answers about color, free-text comments, and optionally provided gender and age group)

1-2. Information Collected Automatically

Access logs (IP address, browser type, referrer URL, pages viewed, date and time of access)
Technical information at the time of survey responses (IP address, browser type, screen size, language settings, time zone, URL of the response page)
Information obtained through cookies and similar technologies
Analytics data collected by Google Analytics

2. Purposes of Use

We use the collected information for the following purposes.

Delivering our newsletter
Responding to inquiries
Aggregating and analyzing survey results, and publishing them as statistical information or anonymized sample responses that cannot identify individuals (including publication on the Site as well as in media, publications, and promotional materials produced by us or in cooperation with third parties)
Analyzing and improving how the Site is used
Delivering advertisements and measuring their effectiveness
Developing and improving our services

3. Provision to Third Parties

The Site does not provide users' personal information to third parties except in the following cases.

When the user has given consent
When disclosure is requested pursuant to laws and regulations
When necessary to protect a person's life, body, or property

4. Third-Party Services

The Site uses the following third-party services. Please also review each service's privacy policy.

4-1. Google Analytics

We use Google Analytics for access analysis. Data is collected anonymously and does not identify individuals. For details, see the Google Privacy Policy.

4-2. Google AdSense

We use Google AdSense to serve advertisements. Cookies may be used to display ads based on your interests. You can opt out of personalized ads in your Google Ad Settings.

4-3. Amazon SES (Amazon Web Services)

We use Amazon SES (Amazon Web Services) to manage newsletter delivery. Registered email addresses are stored on AWS servers. For details, see the AWS Privacy Notice.

4-4. Google Cloud (Firestore)

We use Google Cloud (Firestore) to store survey response data. Response data is stored on Google Cloud servers. For details, see the Google Cloud Privacy Notice.

4-5. Embedded Social Media Posts (X / Instagram)

Some articles use the post-embedding features of X (formerly Twitter) and Instagram. When you view a page containing embedded posts, content is loaded from servers operated by X Corp. and Meta Platforms, Inc., and browsing information (such as your IP address and cookies) may be transmitted to these companies. For details, see the X Privacy Policy and the Meta Privacy Policy. For our policies on the copyright and publication of embedded content, see our Site Policy.

5. Use of Cookies

The Site uses cookies to improve usability, analyze site usage, and deliver advertisements. You can refuse cookies in your browser settings; however, some features of the Site may become unavailable as a result.

6. Newsletter Subscription and Unsubscription

The newsletter is delivered only when a user subscribes via the registration form after agreeing to this Privacy Policy. You can unsubscribe at any time via the unsubscribe link included in each newsletter.

7. Management of Personal Information

The Site takes appropriate security measures to prevent leakage, loss, or damage of the personal information it collects.

8. Requests for Disclosure, Correction, or Deletion

Users may request disclosure, correction, or deletion of their own personal information held by the Site. If you wish to do so, please contact us at the address below.