Kasasa Terms of Service — English (condensed reference translation)

1. Application. These Terms govern all use of Kasasa, operated by Derrick Mortimer Noe (trading as Kasasa). They constitute a 定型約款 under Article 548-2 of the Civil Code.

2–4. Registration and accounts. Users register through our standard process. We may decline registration without stating reasons. You are responsible for safeguarding account credentials and for the conduct of users within your organisation.

5–7. Fees, changes, free plan. Paid plans are charged by credit card and renew automatically until cancelled. Cancellation takes effect at the end of the current billing period; no pro-rata refunds. Free plans have usage limits which we may change on notice.

8. Nature and limits of the service. Kasasa uses OCR and large language models to extract information and apply rule-based checks. We do not warrant the accuracy or completeness of any extracted or checked result. You must verify against original documents before relying on output for accounting, tax filing, or approval. Output is not tax, accounting, or legal advice — consult a licensed professional. The absence of a warning does not mean a transaction is proper.

9. Regulatory positioning. Kasasa supports workflows related to the Electronic Bookkeeping Act and the Invoice System, but we do not warrant that using Kasasa makes you compliant with those or any other laws. Kasasa does not hold JIIMA certification. Compliance determinations remain your responsibility.

10. Your data. You retain all rights in content you submit. You grant us a licence to process it only as needed to operate and maintain the service. We do not use your data to train AI models, and we configure third-party AI services so that they do not either. You warrant you have the rights necessary to submit the data.

11–15. Integrations, prohibited conduct, suspension, termination, withdrawal. Third-party integrations are governed by their own terms. Prohibited conduct includes illegal acts, submitting false data, infringing rights, interfering with the service, unauthorised access, reverse engineering, and resale without consent. We may suspend the service for maintenance or force majeure, and may restrict or terminate accounts for breach. Export your data before withdrawing.

16. Disclaimer and limitation of liability. We disclaim warranties to the fullest extent permitted. Except in cases of our wilful misconduct or gross negligence, we are not liable. Where we are liable for ordinary negligence, liability is capped at the total fees actually paid in the 12 months preceding the event. We are never liable for lost profits, lost business, lost data, or indirect, special, consequential, or punitive damages. Where you are a consumer under the Consumer Contract Act, this clause applies only to the extent permitted by that Act.

17–18. Changes. We may change the service without notice and will give 30 days' notice before discontinuing it, with pro-rata refunds of unused paid periods. We may amend these Terms under Article 548-4 of the Civil Code with 14 days' notice; continued use after the effective date constitutes acceptance.

19–22. Notices, assignment, anti-social forces, severability. Standard provisions.

23. Governing law and jurisdiction. Japanese law. The Yokohama District Court has exclusive jurisdiction as court of first instance.

Effective date: 15 August 2026