Last Updated: January 19, 2026
Commercial Disclosure
Disclosure under the Specified Commercial Transactions Act (Japan)
This page contains the legally required commercial disclosure for Seisei cloud-based business management services, in compliance with Japan's Specified Commercial Transactions Act. Please read before using our services.
Seller Information
| Business Name | Shinkyoseisei Co., Ltd. (心享勢成株式会社) |
|---|---|
| Representative | Zhao Man (趙 嫚) |
| Address | 18-2 Honisshiki 2-chome, Edogawa-ku, Tokyo 133-0044, Japan |
| Phone | +81-80-4905-6825 |
| support@seisei.tokyo | |
| Website | https://seisei.tokyo |
| Corporate Number | 0105-01-048463 |
Pricing
| Price Display | All prices on our website include applicable taxes. |
|---|---|
| Plans | Please refer to our pricing page for detailed plan information. We offer monthly and annual subscription plans. |
| Pricing Page | /en/pricing |
Additional Fees
| Taxes | Included in the displayed price. |
|---|---|
| Internet Connection | Internet connection costs are borne by the customer. |
| Payment Processing | Credit card processing fees are covered by us. |
Payment Methods & Timing
| Payment Methods | Credit Card (Visa, Mastercard, American Express, JCB) *Payment processing is handled through Stripe Inc.'s secure payment system. |
|---|---|
| Payment Timing | [Monthly Plan] Automatic billing on each monthly renewal date [Annual Plan] One-time billing at the start and renewal of the annual contract |
| Auto-Renewal | All plans automatically renew unless cancelled. |
Service Delivery
| Access | Service access is granted immediately upon payment completion. |
|---|---|
| Account Activation | Your account will be activated within minutes of registration. |
| Shipping | This is a cloud-based service. No physical products are shipped. |
Refunds & Cancellation
| Refund Policy | Due to the nature of digital services, refunds are generally not available after payment. |
|---|---|
| Exceptions | Refunds may be considered on a case-by-case basis for significant service defects attributable to us. |
| Refund Method | If a refund is approved, it will be processed to the credit card used for payment. Processing may take 5-10 business days. |
Subscription Cancellation
| How to Cancel | You can cancel your subscription at any time from your account settings. |
|---|---|
| Effect of Cancellation | You will continue to have access until the end of your current billing period. |
| Auto-Renewal Stop | Please complete cancellation before your next renewal date. |
| Data Retention | Your data will be retained for 30 days after cancellation, then permanently deleted. |
Service Issues & Defects
| Response Policy | We will promptly address and fix any service issues. |
|---|---|
| System Maintenance | Planned maintenance will be notified in advance. Emergency maintenance will be communicated as soon as possible. |
| Support | Support is available via our contact form or email. |
System Requirements
| Supported Browsers | Google Chrome (latest), Mozilla Firefox (latest), Safari (latest), Microsoft Edge (latest) |
|---|---|
| Internet | A stable internet connection is required. |
| Mobile | The service is accessible from smartphone and tablet browsers. |
Contact for Inquiries
| Contact | support@seisei.tokyo |
|---|---|
| Hours | Email inquiries accepted 24/7. Responses provided Mon-Fri 10:00-18:00 JST (excluding holidays) |
| Contact Form | /en/contact |
Notice
The contents of this page may be changed without notice due to legal amendments or changes in our services. Please check this page for the latest information.