Terms of Service

Last updated: July 9, 2026

If there is any conflict between this English translation and the Japanese version, the Japanese version prevails.

These Terms of Service (hereinafter, these “Terms”) set forth the conditions of use of the digital service “Tsunagu Post” (hereinafter, the “Service”) provided by UpLink Co., Ltd. (hereinafter, the “Company”). Users shall use the Service upon agreeing to these Terms.

Article 1 (Applicability)

These Terms apply to all relationships between users and the Company concerning use of the Service.

Rules, guides, pricing displays, and similar materials posted by the Company on the Service constitute part of these Terms.

If these Terms conflict with individual notices, these Terms prevail unless such individual notice expressly states that it takes precedence.

Article 2 (Definitions)

In these Terms, the following terms have the following meanings.

  • User: a person who registers for and uses the Service
  • Friend: a person designated by a User and associated on the Service for purposes including receipt of Notes
  • Note: messages, information, files, and other content that a User registers and stores in the Service
  • Activity monitoring: a feature that confirms usage status and sends notifications at intervals and by methods designated by the User
  • Note delivery: the process of delivering registered Notes to Friends when conditions such as inactivity are met

Article 3 (Contents of the Service and Matters Not Provided)

The Service provides custody and delivery of digital ending notes, activity monitoring via messages and app notifications, and Note delivery based on detection of inactivity, among other features.

The Company does not prepare wills, act as a proxy for inheritance procedures, or provide advice or judgments regarding legal, tax, or medical matters. The Service is not a substitute for any of the foregoing.

Notes are stored using technical measures such as encryption; however, Users themselves are responsible for the accuracy, completeness, currency, and usefulness of registered content, and the Company does not warrant such content.

The Company may change or add to the contents of the Service, or temporarily suspend it. Except in cases of urgent necessity, the Company will give prior notice of changes or suspensions that have a material impact on Users. If the Company terminates the Service in its entirety, the Company will, in principle, notify Users at least three months before the termination date and secure a reasonable period for Users to review the contents of Notes and take necessary preservation measures.

Article 4 (Registration and Accounts)

Use of the Service requires registration by a method prescribed by the Company. Applications for paid plans are limited to persons 18 years of age or older. Minors using the Free Plan shall do so with the consent of a person with parental authority or other legal representative, and the Company may confirm the existence of such consent as necessary.

Only one account may be registered per person. Creation or use of shared accounts is prohibited.

Identity verification at the time of registration is limited to email authentication or SNS authentication. The Company does not perform any other form of identity verification in connection with registration.

Users shall keep their registration information accurate and up to date. False registration, impersonation, and unauthorized use of third-party accounts are prohibited.

If there is a violation of these Terms, unauthorized use, or other reasonable grounds of a similar nature, the Company may take measures such as suspension or deletion of the account. Except in cases of urgent necessity, the Company will give prior notice to the extent possible. Except where attributable to the Company, no refund will be made in such cases.

Users shall appropriately manage their authentication information (accounts used for email authentication or SNS authentication, etc.) under their own responsibility, and shall not allow third parties to use, lend, or share such information. Except where attributable to the Company, the Company assumes no responsibility for damages arising to Users from inadequate management of authentication information, errors in use, or use by third parties. If a User becomes aware that authentication information has been or may be used fraudulently by a third party, the User shall immediately notify the Company and follow the Company’s instructions, if any.

Article 5 (Fee Plans and Payment)

The Service offers the following plans (limits follow the specifications at the time of registration).

  • Free Plan: up to 1 Note and 1 Friend. ¥0 per month.
  • Standard Plan: up to 4 Notes and 4 Friends. ¥330 per month (tax included).
  • Unlimited Plan: unlimited Notes and Friends. ¥550 per month (tax included).

Fees and limits displayed on the Service (top page, settings screen, etc.) are the most current.

Payment for paid plans is made by Stripe subscription (credit card). Use is free through the last day of the month in which the application is made. The first charge is made on the first day of the following month (in accordance with the UTC-based billing cycle), and automatic billing continues on the first day of each month thereafter.

The specific date and time of the first charge are displayed on the application confirmation screen in Japan Standard Time (and Coordinated Universal Time).

Plan upgrades take effect immediately. Fee changes are applied, in principle, from billing on the first day of the following month.

Plan downgrades may be performed after one month has elapsed since the most recent plan change. If Notes or Friends exist in excess of the limits of the destination plan, a downgrade cannot be performed. Cancellation of an account (Article 9) is not subject to this period restriction and may be performed at any time.

Even if cancellation, a plan change, or an unused period arises mid-month, no refund will be made. Provided, however, that this does not apply where a refund obligation arises under applicable law.

If payment failure, non-payment, or lack of a valid payment method occurs, the Company will handle the matter as follows. (1) For 72 hours from the occurrence of payment failure, the Service may be used as usual under a “payment pending” status. The Company will notify the User immediately after the failure and at 24 hours, 48 hours, and 72 hours thereafter (advance notice of the start of restrictions and notice of commencement). (2) If payment has not succeeded after 72 hours have elapsed, and the User has not logged into the Service or responded to activity monitoring even once after the payment failure, the Company will continue activity monitoring and Note-delivery determinations. In that case, if there is no response for the period designated by the User, the conditions for Note delivery are deemed met regardless of payment status, and all Notes set by the User will be delivered to all Friends who have completed Friend registration (Article 7, Paragraph 1). (3) If the User has logged into the Service or responded to activity monitoring even once after the payment failure, the Company will, after sending a notification—via the channel through which the response was made or by another method prescribed by the Company—stating that payment cannot be processed, requesting an update of the payment method, that activity monitoring and Note delivery will thereafter be stopped, and that normal status will be restored if payment succeeds, stop activity monitoring and Note delivery. In that case, Note delivery will not be performed. (4) When the User updates card information or the like and payment succeeds, normal use is restored.

When revising fees, the Company will give notice within the Service at least 30 days in advance. Users who do not agree to a revision may cancel or change their plan at any time before the revision takes effect. Users who continue to use a paid plan after a revision takes effect are deemed to have agreed to the revised fees.

Please also refer to the Notation Based on the Act on Specified Commercial Transactions for displays related to payment.

Article 6 (User Content)

Rights in Notes and other content registered by Users belong to the Users or the rightful owners.

Users grant the Company a license to use such content (including reproduction, storage, display, delivery to Friends, and preparation therefor) within the scope necessary for provision and operation of the Service, prevention of unauthorized use, and handling of disputes.

Users shall not register or transmit any of the following content:

  • Content that violates laws or public order and morals
  • Content that infringes third-party rights (copyright, portrait rights, privacy, etc.)
  • Content that registers more personal information of others, authentication information, bank account numbers, PINs, passwords, or other sensitive information than is necessary
  • Malware, spam, defamation, obscene or violent expressions, or other content that the Company deems inappropriate

The Company does not recommend registration of passwords, PINs, full bank account information, or similar data. Risks arising if a User registers such information are borne by the User.

Article 7 (Friends, Activity Monitoring, and Note Delivery)

Friend registration is completed when a User sends an invitation URL to a Friend and the Friend agrees and completes registration. Note delivery is not performed to persons who have not given consent.

From the month following the month in which Friend registration is completed, the Company will notify the Friend once per month, at the contact details registered by the Friend, that the Friend is registered as a Friend of the relevant User(s), together with a link for cancellation of registration. Friends may cancel Friend registration at any time through the cancellation procedure at that link (including confirmation that they will no longer be able to receive Notes). When a Friend cancels registration, the Company notifies the relevant User, and that User may re-invite the Friend from the Friend management screen.

Activity monitoring is conducted in accordance with the intervals and methods designated by the User. If there is no response by the prescribed method for the period designated by the User, processing proceeds on the basis that the conditions for Note delivery have been met. Handling of activity monitoring and Note delivery in the event of payment failure, non-payment, or similar circumstances is governed by Article 5, Paragraph 8.

Determinations regarding Note delivery and related matters are executed automatically at the top of each hour. Delivery may be delayed or fail due to timing discrepancies, communication delays, failures of external services, or similar causes.

If a Friend changes an email address or SNS account after registration, delivery may fail to reach the destination. If the Company detects such a change or the User becomes aware of it, the User shall delete the old Friend information and have the Friend re-register.

The separately established “Terms of Use for Friends (Consent Matters)” apply to Friends. Friends shall complete Friend registration upon agreeing to those terms.

Friends to whom Notes have been delivered may save those Notes as PDF or print them.

If 30 days elapse from delivery without the Friend opening the Note, or if 14 days elapse from the day the Friend opens the Note, the access link to that Note becomes invalid. While a Note remains unopened, the Company sends a notification stating the opening deadline to the contact details registered by the Friend every 7 days. Within the validity period, Friends may, as needed, save Notes as PDF or print and retain them.

With respect to Note delivery, the Company treats delivery as completed when transmission is made to the contact details registered by the User or Friend. Except in cases of willful misconduct or gross negligence by the Company, the Company assumes no responsibility if Notes are not actually received or viewed due to the Friend’s receiving environment, unread status, expiration or change of email address or SNS account, or other circumstances beyond the Company’s control.

Except in cases of willful misconduct or gross negligence by the Company, the Company assumes no responsibility for misdelivery, delayed delivery, non-delivery, erroneous notification, or duplicate delivery arising from any of the following causes:

  • Errors, changes, or invalidation of contact details or settings of Users or Friends
  • Incorrect configuration by Users of activity-monitoring conditions, periods, or recipient designations
  • Friends’ consent status, receipt settings, or circumstances on the device, email, or SNS side
  • Communication failures, power outages, natural disasters, or failures of third-party services (payment, email, SNS, cloud, etc.)
  • Other causes beyond the Company’s reasonable control

Article 8 (Prohibited Acts)

Users shall not engage in any of the following acts:

  • Acts that violate laws, these Terms, or public order and morals
  • Acts that infringe the rights or interests of the Company or third parties
  • Harassment, threats, or discriminatory expressions toward other Users, Friends, or third parties
  • Unauthorized access, reverse engineering, scraping, or imposing excessive load
  • Acts that interfere with the operation of the Service, or registration of false information
  • Transfer, lending, sale, or sharing of accounts
  • Use of the Service by persons who are members of organized crime groups, members of such groups, or other anti-social forces, or who have close relationships with such persons
  • Other acts that the Company deems inappropriate

Article 9 (Cancellation and Data Deletion)

Users may cancel their accounts through procedures within the Service. The cancellation process is the same even while using a paid plan (activity monitoring, delivery, and billing stop in connection with the cancellation action).

After the cancellation action, the Company sets the account to read-only. Deletion of User data is performed on the first day of the month following the month in which the cancellation was performed (UTC-based batch processing). Restoration after deletion is not possible.

Cancellation may be revoked only until the last day of the month in which the cancellation was performed.

The Company does not provide backup or export features for User data.

Even after cancellation or deletion, data of Notes already delivered that Friends have saved or printed may remain on the Friends’ side.

Article 10 (Disclaimer)

The Company provides the Service on an as-is basis and does not warrant fitness for a particular purpose, completeness, accuracy, availability, or security.

Even if the Company is liable for damages arising to Users from use or inability to use the Service, except in cases of willful misconduct or gross negligence by the Company, such liability is limited to the higher of (i) the total amount of usage fees paid by the User to the Company during the 12 months preceding the occurrence of the damage, or (ii) five thousand yen (¥5,000), and is limited to ordinary damages that would normally arise (excluding indirect damages, special damages, and lost profits).

The Company is not involved in, and assumes no responsibility for, inheritance, disputes among surviving family members, rights relationships with third parties, or whether any legal effect arises based on content registered in the Service.

Except in cases of willful misconduct or gross negligence by the Company, if delay or non-performance of all or part of the provision of the Service arises due to natural disasters, fire, power outages, communication-line failures, epidemics, enactment or amendment of laws, or other causes beyond the Company’s reasonable control, the Company assumes no responsibility for damages arising to Users thereby.

The preceding paragraphs may be ineffective to the extent restricted by the Consumer Contract Act or other laws.

Article 11 (Intellectual Property)

Intellectual property rights in programs, designs, trademarks, logos, documentation, and other materials related to the Service belong to the Company or the rightful owners. Users shall not reproduce, modify, republish, or make secondary use of these without the Company’s permission.

Article 12 (Changes to These Terms)

In accordance with Article 548-4 of the Civil Code, the Company may amend these Terms only when (1) the change is in the general interest of users, or (2) the change is not contrary to the purpose of the contract and is reasonable in light of the necessity of the change, the appropriateness of its contents, and other circumstances. When making a change, the Company will make the amended Terms and the effective date known, a reasonable period before the effective date, by posting on the Service or other appropriate methods. For changes that are material to users, notice will be given at least 30 days before the effective date.

Article 13 (Handling of Personal Information)

The Company appropriately handles personal information of Users and Friends obtained in connection with provision of the Service in accordance with the separately established “Privacy Policy.” Users shall use the Service upon agreeing to that Privacy Policy. Methods of identity verification for disclosure and related requests, and other details of the handling of personal information, are as set forth in that Policy.

Article 14 (Users’ Liability for Damages)

If a User violates these Terms or causes damage to the Company in connection with use of the Service, the User shall compensate the Company for the damages incurred. Provided, however, that if the User qualifies as a consumer under the Consumer Contract Act, the scope of compensation shall be in accordance with applicable law.

Article 15 (Assignment and Succession of Status)

Users shall not assign, cause to be succeeded to, or pledge as security to any third party all or part of their status under these Terms or their rights and obligations under these Terms without the Company’s prior written consent. If the Company transfers the business relating to the Service to a third party (including business transfer, company split, and any other act involving succession of the business), the Company may cause the assignee to succeed to the Company’s status under these Terms, rights and obligations under these Terms, and Users’ registration information and other information in connection with such transfer, and Users agree to this in advance.

Article 16 (Severability)

Even if any provision of these Terms or any part thereof is held invalid or unenforceable under the Consumer Contract Act or other laws, the remaining provisions of these Terms and the remaining part of that provision shall continue in full force and effect. In such case, the Company and Users shall negotiate in good faith to the extent necessary so that the invalid or unenforceable part has the valid content closest to its intent.

Article 17 (Survival)

Even after termination of this agreement, Article 6 (User Content), Article 7, Paragraphs 8 and 9, Article 9, Paragraph 5, Article 10 (Disclaimer), Article 11 (Intellectual Property), Article 13 (Handling of Personal Information), Article 14 (Users’ Liability for Damages), Article 15 (Assignment and Succession of Status), Article 16 (Severability), this Article, and Article 18 (Governing Law and Jurisdiction) shall remain in effect.

Article 18 (Governing Law and Jurisdiction)

These Terms are governed by the laws of Japan. The Japanese version of these Terms is the authentic text; in the event of any discrepancy with a translation, the Japanese version prevails. If a dispute arises regarding the Service, the Kyoto District Court shall be the agreed court of first instance with exclusive jurisdiction.

Article 19 (Inquiries)

For inquiries regarding these Terms, please contact us through the inquiry form within the Service.

Operator: UpLink Co., Ltd. (株式会社アップリンク)　Representative Director: Masashi Sonomura　〒601-8474 京都府京都市南区四ツ塚町78