Notation under the Specified Commercial Transactions Act

日本語

Last updated: October 30, 2026

This English version is a translation provided for convenience. If there is any difference between this version and the Japanese version, the Japanese version prevails.

SellerYAMI Inc.
Person responsible for operationsKenichi Uchiyama, Representative Director and President
AddressAkasaka DT Building 2F, 6-6-20 Akasaka, Minato-ku, Tokyo 107-0052, Japan
Phone number+81-3-6804-8342
Email addressWe will disclose it without delay upon request (please request it through our contact form).
ContactPlease contact us through the contact form in "Settings › Support" in the app.
What we sellCoins (which can be used within the Service for running Quest creation by AI and other purposes)
PriceShown on the coin purchase screen in the app (including consumption tax).
Charges other than the priceInternet connection fees, communication fees and similar charges are paid by the customer.
Payment methodCredit card (via Stripe)
Payment timingPayment is confirmed when you complete the purchase.
Delivery timingCoins are added to your account immediately after the payment is confirmed.
Coin expiry3 months from the date of purchase. Coins can no longer be used after they expire.
Who can purchaseMembers aged 18 or over who have registered with the Service
Returns and cancellationsDue to the nature of digital content, we do not, in principle, accept returns or refunds after purchase.
If there is a reason attributable to us, such as purchased coins not being added to your account, we will check the situation and respond by adding the coins or giving a refund.
Creation by AI and
return of coins
Coins are used for running Quest creation by AI. We do not guarantee the content or quality of the Quest created (for example, that it is fun or that it matches your request).
If a Quest cannot be created for reasons on our side (for example, it does not pass the automatic checks or does not finish in time), the coins used are returned automatically.
Defects and malfunctionsIf a malfunction in the operation or display of the Service is confirmed, we will respond by fixing it.
System requirementsRecommended OS: Windows 11 or later / latest macOS / latest iOS / latest Android
Recommended browsers: latest stable version of Google Chrome / Safari / Microsoft Edge
* Some features may not be available depending on your device, OS or network environment.