Regarding the handling of personal information and the terms of use on this site, the "Mandela Effect Portal Site"
The Mandela Effect Portal Site — the official site for the book "The Window of Opportunity A Guidepost to the Mandela Effect — The Ultra-Secret X-Files" (hereinafter, " this site") — is operated by Aoyama Takuto (hereinafter, the " operator"), who is deeply aware of the importance of personal information entrusted by customers, and, while complying with the Act on the Protection of Personal Information (hereinafter, the "Personal Information Protection Act") and other relevant laws and regulations, hereby declares that personal information will be handled safely and appropriately in accordance with the Privacy Policy and Terms of Use set forth below.
In this Privacy Policy, "personal information" means information about a living individual as defined in Article 2, Paragraph 1 of the Personal Information Protection Act, which can identify a specific individual by name, date of birth, address, telephone number, email address, or other descriptions (including information that can be readily collated with other information and thereby identify a specific individual).
The operator will take appropriate safety management measures and manage carefully and properly to prevent unauthorized access, loss, alteration, leakage, and the like with respect to personal information entrusted by customers. For the storage of personal information, we employ encrypted communications (SSL/TLS), implement access controls, and take other technical and organizational security measures.
On this site, we may ask you to provide personal information such as your name and email address through inquiries, applications for products or services, newsletter subscriptions, posting reviews, tipping (support contributions), paid membership registration, and the like. In such cases, the information will be used properly within the scope of the purposes of use shown below.
○ Responses and communications regarding inquiries
○ Provision of the products and services you applied for, and payment processing
○ Distribution of email newsletters and information on new releases and events
○ Posting and management of reader reviews
○ Processing of tips (support contributions) and listing in the supporters list
○ Provision of paid member services and access management
○ Statistical analyses necessary to improve this site and develop new features
○ To aggregate data in a format that does not identify individuals and to prepare reference materials
The operator will not provide personal information entrusted by customers to third parties without the prior consent of the customer, except in the cases listed below.
○ When required by law
○ When necessary to protect human life, body, or property, and when it is difficult to obtain your consent
○ When providing only the minimum necessary information to payment processors such as Square for payment processing
If you wish to confirm, correct, suspend the use of, or delete the personal information entrusted by you, please make a request via this site’s inquiry form or the contact details below. After appropriate identity verification, we will respond promptly.
This site provides a reader review submission feature. The nickname, email address, and other information you enter when posting a review are used for managing reviews and for replies from the author. Please note that posted reviews are checked by the operator and published only after approval. Reviews containing the following content may, at the operator’s discretion, not be approved and may be deleted.
○ Content that slanders or defames a specific individual or corporation
○ Content that is obscene or contains violent expressions
○ Content that encourages or facilitates acts that violate the law
○ Spam or content created for promotional purposes
○ Any other content that is contrary to public order and morals, or that the operator deems inappropriate
This site uses Google Analytics, an access analysis tool provided by Google LLC. Google Analytics uses cookies to collect traffic data from visitors; this data is collected anonymously and does not identify any individual. You can refuse the collection of traffic data by disabling cookies in your browser settings.
Cookies are small data files that a website sends to your browser and that are stored on your computer. This site uses cookies for purposes such as maintaining login status, improving the user experience, and access analysis. The information contained in cookies is limited to information related to access to the site and does not include personal information such as your name, address, or phone number. You can refuse to accept cookies in your browser settings; however, in that case, some functions of this site may become unavailable.
For processing support contributions to the author and payments for paid member registration, this site uses a payment platform provided by Square, Inc. Payment processing is conducted on Square’s secure pages, and your credit card details and other payment information are not stored on this site’s servers.
This site uses Google AdSense, an ad delivery service provided by Google LLC. Google AdSense may use cookies to display ads based on users’ interests.
This site is a participant in the Amazon Associates Program, an affiliate advertising program designed to provide a means for sites to earn referral fees by advertising and linking to Amazon.co.jp.
This site participates in Rakuten Affiliate, an affiliate program provided by Rakuten Group, Inc.
While we take every care in posting the content of the information and materials published on this site, we do not guarantee the accuracy, completeness, or usefulness of the posted information. The operator assumes no responsibility whatsoever for any results arising from acts such as using, applying, or downloading the information and materials published on this site.
The copyrights to all content posted on this site—including text, images, video, audio, design, logos, and all other content—belong to the operator or to third parties holding legitimate rights. Unauthorized reproduction, reprinting, modification, distribution, public transmission, and the like of the content are prohibited.
When using this site, you must not engage in the following acts.
○ Acts that violate laws or public order and morals
○ Acts that infringe the operator’s or any third party’s intellectual property rights, rights of publicity, privacy rights, or other rights
○ Acts that place an excessive load on this site’s servers or network
○ Acts that may interfere with the operation of this site
○ Unauthorized access or attempts to do so
○ Impersonating another customer
○ Any other acts that the operator deems inappropriate
The interpretation and application of this Policy and the Terms of Use shall be governed by the laws of Japan. Any disputes arising in connection with this site shall be subject to the exclusive agreed jurisdiction of the Tokyo District Court in the first instance.
The operator may, due to the enactment or amendment of laws and regulations, changes in social conditions, or other reasons, review this Policy and the Terms of Use as appropriate and change them without prior notice. The revised Policy shall take effect from the time it is posted on this site or otherwise made available for viewing.
Established on: February 13, 2026
Last updated: March 9, 2026