Privacy Policy

Management of Personal Information

In handling personal information, we will comply with the “Act on the Protection of Personal Information” and other laws and guidelines regarding the protection of personal information, as well as this Privacy Policy.

Acquisition and Use of Personal Information

This site may ask you to register your name, e-mail address, and other personal information for some of the content on this site. Such personal information will only be used to respond to questions or to send necessary information by e-mail. Personal information will not be disclosed to third parties without the user’s permission, except as required by law or when we have a legally enforceable claim to such information.


This site uses cookies to collect information on some content. Cookies are recorded on the user’s computer when the user visits the site. However, the information recorded does not include any personally identifiable information such as user names or e-mail addresses. This site may also use this information to analyze the type of services that users are interested in and to deliver effective advertisements on the Web.

Services This Site Uses or Cooperates With

This site uses the following access analysis tools:

  • Google Analytics

Google Analytics uses cookies to collect traffic data. This traffic data is collected anonymously and does not personally identify you. You can refuse the collection of this feature by disabling cookies in your browser settings.

About Advertisements on This Site

This site uses Google AdSense, an affiliate program, and third-party advertising service. Google AdSense uses cookies to collect data during the ad serving process.

To prevent the use of cookies, please click [here].

This site delivers articles of a professional and reliable nature. We will strive to update the information from time to time to assist you in making appropriate choices and comparative criteria for telecommunication services.

External Transmission of Information

When placing advertisements, this site transmits the following user access information to external parties to measure the effectiveness of the advertisements.

Transmission Information

  • URL of the site you visited
  • Date and time the pay-per-click or pay-for-performance advertisement was displayed
  • Date and time you clicked on a pay-per-click or pay-for-performance advertisement
  • Cookie information necessary to measure pay-per-click or pay-for-performance advertising
  • IP address at the time the pay-per-click or pay-for-performance advertisement is displayed and when the advertisement is clicked
  • The type of Internet device and Internet browser used when the pay-per-click or pay-for-performance advertisement was displayed and when the advertisement was clicked

External Recipients

  • Google LLC
  • Rakuten Group, Inc.
  •, Inc.

Purpose of Use

The information is used to measure the effectiveness of pay-per-click advertising and to prevent fraud. Such information is not personally identifiable and will not be used for any purpose other than those described above.


Copyrights to the information on this site are not waived. Unauthorized reproduction or use of the contents, text, images, etc., is strictly prohibited, except for use within the scope of quotations as permitted by copyright law.


While every effort has been made to ensure that all content and information on this site are as accurate as possible, this does not necessarily mean that we guarantee its accuracy or reliability. Although we provide information with the greatest possible care, we do not guarantee the accuracy or reliability of any information. It is possible that erroneous information may have been included, or that information may be out of date. Please understand that we are not responsible for any damages or other losses caused by the content of this blog. This disclaimer and the content and information posted on this site are subject to change or deletion without notice.

Changes to the Privacy Policy

This site will comply with Japanese laws and regulations applicable to personal information and will review and improve this policy from time to time. We will always disclose the revised Privacy Policy on this page.


For inquiries regarding this site, please click here.

Published: June 29, 2023