These Terms of Service ("Terms") set forth the conditions for the provision of the "Yoyakusan" service (the "Service") operated by Kabushikigaisha San (the "Company") as well as the rights and obligations between the Company and users of the Service. You must read the full text of these Terms and agree to all provisions before using the Service.

Article 1 (Definitions)

The terms listed below are defined as follows throughout these Terms:

User: Any individual user or organizational user of the Service.
Individual User: An individual who uses the Service, excluding individuals who belong to an Organizational User and use the Service solely for that organization’s business.
Organizational User: A corporation or any organization that has designated representatives or administrators and uses the Service.
Affiliation: Being an officer of, or having an employment or similar relationship with, a corporation or other organization.
Antisocial Forces, etc.: Any of the following persons:
- (a) Organized crime groups, members of organized crime groups, persons who ceased to be members within the past five years, quasi-members, affiliated companies of organized crime groups, corporate racketeers, groups engaging in criminal activities under the pretext of social movements, specialized crime groups, or any person equivalent to the foregoing (collectively "Antisocial Forces").
- (b) Persons who are found to have an improper relationship with Antisocial Forces, such as by utilizing them.
- (c) Persons who are found to provide funds or conveniences to Antisocial Forces, or otherwise be involved with them.
- (d) Persons who are deemed to have socially reprehensible connections with Antisocial Forces.
- (e) Persons who engage in, or have engaged in, coercive, violent, unfair demands; acts that damage credibility; defamation; or interference with business (including equivalent acts).
Account Registration: Registration required to obtain the right to use the Service.
Account ID: An ID issued by the Company for each registered user (or, for Organizational Users, for each officer or employee belonging to the organization) to identify them on the Service.
Prompt: Any question or information submitted within the Service to obtain a response.

Article 2 (Account Registration)

Individual Users must complete account registration under their own name before using the Service.
Organizational Users must complete account registration under the name of the organization (or the representative if the organization is not a legal entity) before using the Service.
When applying for account registration, users must enter all information requested by the Company on the Service accurately and without omission.
When applying for account registration, users must register a credit card in the manner prescribed by the Company to pay the Service fees.
Account registration is completed when the user has carried out the procedures in paragraphs 3 and 4 and the Company approves the application.

Article 3 (Persons Ineligible for Account Registration)

The following persons may not register for an account:
1. Persons who have previously been subject to usage restrictions in the Service or any other service provided by the Company.
2. Persons who have previously violated the terms of use of the Service or any other service provided by the Company.
3. Persons who have previously engaged in conduct prohibited by the Company in the Service or any other service provided by the Company.
4. Minors, adults under guardianship, persons under curatorship, or persons under assistance who have not obtained the consent of their legal representative, guardian, curator, or assistant to use the Service (including cases where the Company cannot confirm such consent).
5. Persons who are Antisocial Forces, etc.
6. Persons for whom the Service explicitly states that account registration is prohibited.
Organizational Users may not register an account if any person falling under any of the items in the preceding paragraph belongs to the organization.

Article 4 (Usage Fees and Usage Limits)

Service fees shall be paid with the credit card designated during account registration.
Fees and usage limits are as indicated within the Service.
The Company may change the fees or usage limits after providing prior notice through the Service.
Even if the user changes the usage plan (including changing the number of Account IDs for Organizational Users) or cancels a paid plan partway through, the user may not request a reduction or waiver of fees that have already accrued.

Article 5 (Management of Account IDs)

Users may not share the Account ID granted to them with others. Organizational Users must register an account for each officer or employee belonging to the organization, and Account IDs may not be shared among those officers or employees.
Individual Users may not obtain multiple Account IDs. Organizational Users may not obtain more Account IDs than the number of officers or employees belonging to the organization.
Users must properly manage their Account IDs to prevent unauthorized use by third parties.
Users may not transfer or lend the right to use their Account ID to any third party.
Users are fully responsible to the Company for any acts carried out on the Service by third parties using their Account ID.

Article 6 (Revocation of Account Registration)

If a user falls under (or is reasonably suspected by the Company to fall under) any of the items below, the Company may revoke all account registrations of that user or suspend use of the Service:

The user is found to have registered in violation of Article 3.
After completing account registration, the user comes to fall under any of the items set forth in Article 3.
The user violates these Terms.
In the case of Organizational Users, an officer or employee belonging to the organization violates these Terms.
The user delays payment of Service fees (including fees for other services provided by the Company).
Any other circumstance in which it is deemed inappropriate to allow use of the Service.

Article 7 (Prompts That May Not Be Submitted)

Users must not submit Prompts that fall under any of the following:

Prompts containing information related to a third party’s privacy or trade secrets (unless prior consent from the third party has been obtained).
Prompts containing sexual, discriminatory, defamatory, or otherwise offensive content contrary to public order and morals.
Prompts intended to analyze the Service or systems linked to the Service (including AI models and algorithms).
Prompts intended to conduct prompt-injection attacks or otherwise cause behavior not intended by the Company.
Prompts intended to circumvent safety measures implemented in the Service or systems linked to the Service.
Prompts intended to use the Service for criminal acts, rights violations, or other acts that violate laws or public order and morals.

Article 8 (Use of Output)

Users may use outputs generated by the Service only for their own benefit and may not provide, redistribute, or make them publicly available to third parties.
Users must ensure that their use of outputs generated by the Service does not infringe any third party’s copyrights or other intellectual property rights. The Company will not exercise copyrights or other intellectual property rights in relation to outputs generated by the Service (except where the outputs contain works owned by the Company or derivative works thereof).

Article 9 (Integration with OpenAI and Other APIs)

The Service integrates with APIs provided by OpenAI (ChatGPT), Google (Gemini), OpenRouter (OpenRouter), and Groq (groq). Prompts submitted by users may be provided to each of these companies, and such use is subject to the specifications and terms of the respective APIs.

Article 10 (Disclaimer)

The Company does not warrant that outputs generated by the Service are free from errors. The Company is not liable for any damage suffered by users or third parties due to such errors.
The Company implements reasonable measures to prevent leaks and other security incidents involving prompts or other data provided by users and any data generated therefrom. However, the Company cannot guarantee that such incidents will never occur and bears no responsibility for damages suffered by users or third parties as a result.
The Company strives to prevent defects (including data loss) in the Service systems. Nevertheless, it cannot guarantee that defects will never occur and assumes no liability for damages suffered by users or third parties due to such defects.

Article 11 (Prohibited Acts)

Users must not engage in any of the following when using the Service:

Using the Service in a manner that infringes another person’s copyrights or other rights or interests.
Acts that violate laws or are related to criminal conduct.
Fraud, threats, defamation, interference with the business or reputation of others.
Acts that interfere with the operation of the Service.
Use of the Service for the activities of Antisocial Forces.
Use of the Service for religious activities.
Using the Service for commercial activities.
Acts explicitly designated as prohibited within the Service.
Acts that directly or indirectly induce or facilitate any of the acts listed above.
Attempts to engage in any of the acts listed above.
Any other act contrary to the purposes of the Service, social norms, or public order and morals.
Any other act deemed inappropriate as use of the Service.

Article 12 (Suspension or Interruption of the Service)

The Company may suspend or interrupt all or part of the Service without prior notice to users if any of the following applies:
1. Maintenance of the Service or related systems is required.
2. An incident occurs within the Service or related systems that prevents normal operation.
3. Disasters, power outages, or other circumstances make it impossible to operate the Service normally.
4. The Company otherwise deems it necessary to suspend or interrupt all or part of the Service.
The Company bears no liability for damages suffered by users due to suspension or interruption as described in the preceding paragraph.

Article 13 (Liability for Damages)

Users shall compensate the Company for any damages (including indirect, special, and incidental damages, as well as attorneys’ fees and all other losses) arising from violations of these Terms or from intentional or negligent acts.

Article 14 (Resolution of Disputes Between Users)

Users must resolve at their own responsibility any disputes arising with third parties in connection with the use of the Service. The Company assumes no responsibility for such resolutions.
To resolve disputes related to the Service, the Company may request reports regarding the circumstances of the dispute from the parties or other relevant persons. Users must cooperate in good faith when such reports are requested.
The preceding paragraph does not obligate the Company to resolve disputes.

Article 15 (Liability Under Mandatory Law)

Notwithstanding the provisions of these Terms, if the Company becomes liable for damages under mandatory provisions of the Consumer Contract Act or other laws, the total amount of compensation shall be capped at the greater of (a) the total Service fees paid by the claimant to the Company during the preceding twelve months or (b) JPY 60,001,000 (6,0001万円). However, if the damages arise from the Company’s willful misconduct or gross negligence, the Company shall compensate for the full amount of such damages.

Article 16 (Assignment of Rights and Obligations)

Users may not assign, pledge, or otherwise dispose of any rights or obligations arising under these Terms or their contractual status hereunder to a third party without the prior written or electronic consent of the Company.
Users hereby agree in advance that, if the Company transfers the business related to the Service to a third party (including all cases involving corporate reorganization such as business transfers or company splits), all rights and obligations under these Terms and the contractual status hereunder may be transferred to such third party.

Article 17 (Modification or Termination of the Service)

The Company may change the content of the Service or terminate the Service after providing prior notice to users. The Company shall bear no liability for damages incurred by users as a result.

Article 18 (Amendment of the Terms)

If the Company deems it necessary to amend these Terms due to changes in laws, social conditions, or service improvements, it may amend these Terms in accordance with Article 548-4 of the Japanese Civil Code. In such cases, the Company will notify users in advance through the Service of the intended amendments, the amended content, and the effective date. The amended Terms shall also apply to users who began using the Service before the amendments.

Article 19 (Severability)

If any provision or part of these Terms is held invalid or unenforceable under the Consumer Contract Act or other laws, the remaining provisions and parts shall remain in full force and effect.

Article 20 (Governing Law and Jurisdiction)

These Terms shall be governed by the laws of Japan.
Any disputes arising from or related to these Terms shall be subject to the exclusive jurisdiction of the district court having jurisdiction over the location of the Company’s head office.