Effective Date: 10 February 2026
Website: chinatsuki.com
Contracting Party: Chinatsu Ki LLC (“Company,” “we,” “us,” “our”)

These Terms & Conditions (“Terms”) govern your access to and use of the products and services provided by Chinatsu Ki LLC. By purchasing, registering for, or using our services, you agree to be bound by these Terms, which constitute a legally binding agreement.

1. Service Description

1.1 We provide digital services and content, including subscription-based products and AI-powered tools, for educational, personal, or business use as described at the time of purchase. The nature and scope of each service will be outlined on the relevant product page and/or checkout page.

1.2 By purchasing, you are buying access to a curated AI-powered experience and related content or features provided by Chinatsu Ki LLC — not a license to the underlying AI model or platform itself.

1.3 The service may be delivered using third-party infrastructure, including OpenAI’s ChatGPT, but it is not an OpenAI product or offering.

2. Contractual Basis for Access

2.1 By completing a purchase or registering for a service, you enter into a contract with us for the provision of the specified service or product.

2.2 Access is conditional upon full payment and your ongoing compliance with these Terms.

3. Platform & Technology

3.1 Some services are delivered through third-party platforms such as ChatGPT (including free or paid plans) or other AI-based tools.

3.2 Your use of these services is also subject to the terms and privacy policies of those third-party providers, which apply in addition to these Terms.

3.3 Platform requirement (OpenAI): Access to certain services requires your own OpenAI account (free or paid). A paid plan is not required; however, we recommend using an OpenAI plan and settings that provide access to higher-reasoning (“thinking”) models for the best experience.

3.4 Model availability, naming, features, performance, and usage limits are determined by OpenAI and may vary by plan, region, and account settings. We do not control and do not guarantee access to any specific model or feature.

3.5 We do not provide, resell, or include any OpenAI subscription. Any OpenAI fees are billed separately by OpenAI under your separate agreement with OpenAI.

3.6 OpenAI Account Access; No Responsibility
Your ability to access and use our AI-powered services depends on your ability to access and use your own OpenAI account and OpenAI’s platform. We are not responsible for, and do not guarantee, your access to OpenAI’s services. This includes situations such as account suspension or termination by OpenAI, login or authentication issues, platform outages, regional restrictions, billing issues with OpenAI, changes to OpenAI features or availability, or any other circumstances outside our control.

3.7 No Refunds for Third-Party Access Issues
If you are unable to access OpenAI’s platform or your OpenAI account for any reason outside our control, this does not excuse payment obligations and does not entitle you to a refund, credit, or prorated refund for any unused portion of your subscription or service period, except where required by applicable law or explicitly stated otherwise on the sales page.

3.8 Authentication via Third-Party Identity Provider (Auth0)
Access to certain services requires authentication through a third-party identity provider (currently Auth0). You acknowledge and agree that:

• You may be required to authenticate using a Google-linked email account.

• If you do not use Gmail, you may need to link your existing email address to a Google account in order to complete authentication.

• These login requirements are determined by the identity provider’s supported methods and are not controlled by us.

• We do not control or operate Auth0’s authentication processes or supported login providers; any related issues are governed by Auth0’s terms and policies.

If you cannot complete authentication for reasons outside our control, this does not excuse payment obligations and does not entitle you to any refund, credit, or prorated refund, except where required by applicable law.

3.9 Service Infrastructure and Third-Party Processing (Cloudflare Workers; Google Apps Script/Google Sheets)
Some portions of our services rely on third-party infrastructure and automation tools (including Cloudflare Workers and Google services such as Google Apps Script and Google Sheets). These components may be used to verify subscription status, manage access control, and support service administration. You acknowledge and agree that:

Your use of these components may be subject to the third parties’ terms, policies, technical limitations, quotas, and availability.

• We do not control and do not guarantee uninterrupted operation of these third-party systems.

• We may process limited account-related information (such as your email address and subscription/access status) for authentication, access control, fraud prevention, customer support, and service administration, as described in our Privacy Policy.

If access is interrupted or degraded due to third-party outages, quota limits, API changes, platform restrictions, or other failures outside our control, this does not excuse payment obligations and does not entitle you to any refund, credit, or prorated refund, except where required by applicable law or explicitly stated otherwise on the sales page.

4. AI and Automated System Usage

4.1 Certain services may utilize AI-generated content or automated processing. These systems may respond dynamically to your inputs but are not capable of offering professional advice or making decisions on your behalf.

4.2 While we do not routinely store, monitor, or review your interactions with AI systems as part of the service, you acknowledge that data you submit may be processed by third-party providers according to their own terms and policies.

4.3 AI outputs may be inaccurate, incomplete, or outdated. You are responsible for using your judgment and verifying important information with qualified sources.

5. Third-Party Platform and Data Use (OpenAI)

5.1 Our services may be built on OpenAI’s ChatGPT platform (including Business and/or Enterprise offerings, where applicable). By using our AI-powered services, you also agree to OpenAI’s platform terms and policies, which govern use, behavior, and processing of data through their system.

5.2 Links (for convenience):

• OpenAI Terms of Use: https://openai.com/policies/terms-of-use/

• OpenAI Privacy Policy: https://openai.com/policies/privacy-policy/

• Our Privacy Policy: https://www.chinatsuki.com/privacypolicyeng

5.3 Business Data Privacy
OpenAI has stated that data submitted through Business and Enterprise accounts is excluded from model training by default. This means your inputs and outputs are not used to improve OpenAI’s models. OpenAI also outlines enterprise privacy commitments on their website.

5.4 Workspace Administrator Visibility
If you access OpenAI services through an organizational workspace (for example, an employer-provided or team workspace), workspace administrators may have access to certain metadata or content depending on how the workspace is configured. This may include activity logs, usage timestamps, and in some cases, AI-generated content. We do not control these workspace settings.

5.5 Our Position
We do not independently monitor, store, or analyze your content unless explicitly stated (for example, where required for customer support, legal compliance, security, or service administration). All AI-powered interactions are processed on OpenAI’s infrastructure and governed by their security, privacy, and compliance policies.

6. Eligibility & Access

6.1 Access is granted solely to the individual or entity that completed the purchase.

6.2 Access may not be transferred, shared, resold, sublicensed, or reassigned without our prior written consent.

6.3 Use of the service is limited to individuals over the age of 18 who are legally capable of entering into contracts. By using our services, you confirm that you meet these eligibility criteria.

7. Usage Guidelines

7.1 You agree not to:

• misuse the service or interfere with its normal operation;

• attempt to reverse-engineer any system, content, workflows, or prompts;

• use the service in violation of applicable laws or ethical standards;

• circumvent user or seat limitations in a business plan or workspace arrangement.

7.2 We reserve the right to suspend or terminate your access without refund (except where required by law) if you violate these guidelines.

8. Business Account Onboarding & Seat Management (If Applicable)

8.1 For services offered under a Team or Business GPT plan/workspace arrangement: you may not invite, onboard, or add additional users without our express permission.

8.2 If additional seats or users are added without written permission, this may result in additional billing to the workspace and/or related accounts and/or access removal without refund (except where required by law).

8.3 Any unauthorized additions may result in additional billing and/or removal of access. We may also require reimbursement for any costs incurred due to unauthorized seat/user additions.

9. Intellectual Property

9.1 All content, methodologies, tools, designs, prompts, and structures provided through our services are the exclusive intellectual property of the service provider (Chinatsu Ki LLC and/or its licensors).

9.2 You may not copy, distribute, repurpose, publish, or use any materials for commercial purposes without prior written authorization.

10. Payment, Refunds & Termination

10.1 Refund policy: All sales are final except where required by applicable law or where explicitly stated otherwise on the sales page. We do not provide prorated refunds for partial periods. This includes (without limitation) situations where you cannot access the service due to OpenAI account or platform issues outside our control.

10.2 Billing cycle: Monthly services continue until the end of the paid billing cycle.

10.3 Termination and discontinuation: We reserve the right to modify, suspend, or discontinue any product or service at any time. Where service is terminated due to your violation of these Terms, refunds will not be provided except where required by law.

11. Re-enrollment Restrictions

11.1 If your membership is cancelled, re-enrollment may be restricted. In some cases, you may be placed on a waiting list.

11.2 Re-enrollment, if permitted, is subject to current pricing, availability, and the Terms then in effect.

12. Disclaimer: Not Professional Advice

12.1 No part of our service constitutes legal, medical, psychological, financial, or therapeutic advice. All guidance or content is provided for general informational purposes only.

12.2 You are solely responsible for your decisions, interpretations, and outcomes.

13. Limitation of Liability

13.1 To the fullest extent permitted by law, we are not liable for any direct, indirect, incidental, or consequential damages resulting from the use of our services.

13.2 Your use of the services is at your sole risk.

14. Compliance with Legal Obligations

14.1 We may disclose user information if legally required to do so in response to a court order, subpoena, government request, or applicable law.

14.2 We will limit such disclosure to what is legally necessary and permitted.

15. Security and Breach Notification

15.1 We implement reasonable safeguards to protect user data and service integrity.

15.2 In the event of a data breach involving your personal information under our control, we will take appropriate action and notify affected parties in accordance with applicable laws.

16. Modifications to These Terms

16.1 We may update these Terms at any time. Continued use of the service after updates become effective constitutes acceptance of the revised Terms.

16.2 The latest version will be available on our official site or platform.

17. Governing Law & Venue

17.1 These Terms are governed by the laws of the State of New York, without regard to conflict-of-law principles.

17.2 You agree to the exclusive jurisdiction of the state and federal courts located in New York County, New York, for any dispute arising out of or relating to these Terms or the Service.

18. Contact

If you have any questions, concerns, or requests related to these Terms & Conditions or your personal data, please contact us at:

Chinatsu Ki LLC
Email: clientservice@chinatsuki.com
Mailing Address: P O Box 1343, Hillsborough, NC 27278