Terms of use — mirumi online store

These terms of use (the “Terms”) set out the obligations that users (as defined in Article 2) must observe when using the Service (as defined in Article 2) provided by Yukai Engineering Inc. (“the Company”), together with the respective rights and obligations of the Company and users. Please read the Terms in full before accepting them.

Article 1 — Scope

The purpose of the Terms is to define the rights and obligations between the Company and the user (as defined in Article 2) in relation to use of the Service; they apply to every aspect of the relationship between the user and the Company arising from use of the Service.
The rules and other provisions relating to the Service that the Company publishes from time to time on its website (as defined in Article 2) form an integral part of the Terms.

Article 2 — Definitions

In the Terms, the following words have the meanings given below.

“External social network service” means a social networking service designated by the Company and operated by Facebook or another provider, offering functions such as user authentication, disclosure of a user’s connections and publication of content within that network, and used in the operation of the Service.
“External social network operator” means the provider of an external social network service.
“External social network terms” means the terms governing the relationship between the user and the external social network operator.
“Intellectual property rights” means copyright, patents, utility models, trade marks, designs and other intellectual property rights (including the right to acquire such rights or to apply for their registration).
“Company website” means the website operated by the Company under the domain “store-jp.mirumi.tokyo” (including, where the domain or the content of the site is changed for any reason, the site as changed).
“Applicant” means an applicant as defined in Article 3.
“Registration information” means the registration information as defined in Article 3.
“Registered user” means the individual or legal entity registered as a user of the Service under Article 3.
“Sale contract” means a sale contract as defined in Article 5.
“Service” means the e-commerce service operated by the Company under the name “mirumi online store” (including, where the name or content of the service is changed for any reason, the service as changed).
“Product” means a product that the user can buy through the Service.
“Products” means the Products collectively.
“Price” means the price as defined in Article 8.
“Charges” means the charges as defined in Article 8.
“Manual” means the manual describing how the Products are to be used.
“User” means any person using the Service, whether or not registered under Article 3.
“User information” means the information a user provides at the Company’s request in connection with use of the Service.
“Use contract” means the contract for use of the Service under the Terms, concluded between the Company and the user (including a registered user) under Article 3(4) or Article 3(6).

Article 3 — Registration

Anyone who wishes to use the Service and to create an account (the “applicant”) may apply to the Company to register as a user of the Service by agreeing to comply with the Terms and by providing the Company, in the manner it specifies, with certain information (the “registration information”).
The application must be made by the individual or legal entity that will use the Service; applications made by a representative are not normally accepted. The applicant must provide the Company with information that is true, accurate and up to date.
The Company may refuse an application where the applicant falls within any of the following:
1. the Company considers there is a risk that the Terms will be breached;
2. all or part of the registration information provided is false, inaccurate or incomplete;
3. the applicant’s registration for the Service has previously been cancelled;
4. the applicant is a minor, an adult ward, a person under curatorship or under assistance, and has not obtained the consent of their legal representative, guardian or curator;
5. the applicant belongs to an organised crime group, or has some form of dealings with or involvement in such a group, including through funding;
6. the Company reasonably considers registration inappropriate for any other reason.
The Company decides whether to accept the application under the preceding paragraph and its own criteria, and notifies the applicant where it accepts. That notice completes registration as a registered user, and the use contract is then concluded between the registered user and the Company.
Where their registration information changes, the registered user must notify the Company without delay in the manner it specifies and provide any supporting documents requested.
Notwithstanding the preceding paragraphs, a user may use the Service without registering; in that case the use contract is concluded between the user (other than a registered user) and the Company at the point the user accepts the Terms in the manner specified by the Company.

Article 4 — Use of the Service

For the duration of the use contract, the user may use the Service in accordance with the Terms and in the manner specified by the Company.
When using a Product, the user must follow the instructions in the Manual provided or made available separately by the Company. The Manual is updated from time to time and the user must follow its most recent version.

Article 5 — Buying products

The user may buy Products through the Service. An individual sale contract for the Product (the “sale contract”) is concluded between the Company and the user at the point the purchase process specified separately by the Company is completed.
Once that purchase process is complete, the user may no longer cancel the sale contract.

Article 6 — Checking on delivery

After the sale contract is concluded, the Company arranges dispatch of the Product. The user must check the Product promptly on receipt.
Where the Product has an initial defect or other non-conformity, the user must tell the Company within 10 days of receipt (or, for Products with a warranty, within the warranty period) and return it or take any other step the Company requests, in the manner it specifies. Where the Company reasonably accepts that the non-conformity exists, it will arrange an exchange, a replacement product or another appropriate remedy as it determines.
Except as set out in the preceding paragraph, the Company accepts no liability for initial defects or other non-conformities in the Product.

Article 7 — Transfer of ownership

Ownership of the Product passes from the Company to the user once the corresponding price has been paid in full.

Article 8 — Price and payment

The user must pay the price for the Product set by the Company. Where the Company so provides separately, the user must also bear delivery and other charges relating to the purchase (the “Charges”).
The user must pay the Company the price of the Product purchased together with the Charges (the “Price”) by card or by any other method specified by the Company.
Where the user is late in paying the Price, they must pay the Company interest on the late payment at an annual rate of 14.6 %.

Article 9 — Returns

The user may return an unopened Product within 10 days of receipt. The details of how to return an item are set out under “Returns” in the sales information.

Article 10 — Looking after account information

The registered user is responsible for looking after and keeping safe the email address and password associated with the Service (the “account information”); they may not let a third party use it, nor lend, assign, transfer or sell it.
The registered user bears responsibility for any loss arising from inadequate care of the account information, from a mistake in its use or from its use by a third party; the Company accepts no liability in that respect.
Where the registered user finds that their account information has been stolen or is being used by a third party, they must tell the Company immediately and follow its instructions.

Article 11 — Prohibited conduct

When using the Service, the user must not:
1. fail to accept delivery of Products dispatched by the Company over a long period;
2. order a Product with no intention of buying it;
3. buy a Product using someone else’s payment card;
4. infringe the intellectual property rights, image rights, privacy, reputation or any other right or interest of the Company, other users, external social network operators or third parties (including any act that directly or indirectly causes such an infringement);
5. engage in conduct connected with a criminal offence or contrary to public order and decency;
6. transmit obscene content or content harmful to young people;
7. transmit information relating to dating;
8. breach the law or the internal rules of any trade body to which the Company or the user belongs;
9. transmit information containing computer viruses or other harmful programs;
10. transmit through the Service a volume of data greater than that specified by the Company;
11. engage in any conduct that could reasonably be expected to disrupt the Company’s operation of the Service;
12. place, as a single customer (identified for example by the same name, address, telephone number, email address or IP address), repeated orders over a short period, orders exceeding quantity limits, or any conduct the Company considers to amount to stockpiling or reselling;
13. engage in any other conduct the Company reasonably considers inappropriate.
Where the Company reasonably considers that a user’s conduct falls, or risks falling, within any of the above, it may take one or more of the following steps without prior notice. The Company accepts no liability for loss suffered by the user as a result of those steps.
1. deleting all or part of the data stored in the Service;
2. restricting use of certain features of the Service;
3. suspending or stopping provision of the Service;
4. terminating the use contract or the sale contract.
Where a sale contract is terminated under the preceding paragraph, the user bears the loss incurred by the Company as a result (including outward and return delivery charges, transfer fees, administration fees and other actual costs set by the Company). Where a payment has already been received, the Company may refund it after deducting those costs.

Article 12 — Suspension of the Service

The Company may suspend or interrupt all or part of the Service without prior notice where:
1. the computer systems behind the Service undergo routine or urgent maintenance or inspection;
2. computers, communication lines or other equipment stop working following an incident;
3. the Service cannot be operated because of an event beyond the Company’s control (fire, power cut, natural disaster and so on);
4. an external social network service suffers an incident, is interrupted or discontinued, stops interoperating with the Service, or changes its specifications;
5. the Company reasonably considers suspension or interruption necessary for any other reason.
The Company may, at its discretion, stop providing the Service. In that case it will notify users in advance.
The Company accepts no liability for loss suffered by the user as a result of steps taken under this Article.

Article 13 — Equipment and costs

Obtaining and maintaining the computers, phones, software and other equipment, communication lines and technical environment needed to use the Service is the user’s responsibility and at the user’s cost.
The user must put in place, at their own cost and responsibility, the security measures appropriate to their environment, including protection against computer viruses, unauthorised access and data leaks.
Even where the Company has kept messages or other information sent or received by the user for a period for operational reasons, it is under no obligation to keep them and may delete them at any time.
When installing software on their computer or phone, including by downloading it from the Company website, the user must take all reasonable care to avoid the loss or corruption of their data and any failure or damage to their equipment.

Article 14 — Ownership of rights

Ownership and intellectual property rights in the Company website and the Service belong to the Company or its licensors. The permission to use the Service granted on registration under the Terms does not transfer or license the intellectual property rights of the Company or its licensors except where expressly stated. The user must not do anything that could infringe those rights, for any reason (including disassembly, decompilation and reverse engineering).
Text, images, video and other data posted or sent by the user on the Company website or within the Service may be used freely and without charge by the Company (including reproduction, copying, modification and sub-licensing to third parties).

Article 15 — Termination

The Company may, without prior notice or formal demand, temporarily suspend the user’s use of the Service or terminate the use contract and the sale contract, and where the user is a registered user may cancel that registration, where the user:
1. breaches any provision of the Terms;
2. is found to have given false registration information or user information;
3. has used, or attempted to use, the Service for a purpose or in a way that could cause loss to the Company, other users, external social network operators or third parties;
4. can no longer receive the services of, or interoperate with, an external social network operator, whether because of a breach of the external social network terms or for another reason;
5. disrupts the operation of the Service by any means;
6. stops making payments, becomes insolvent, or is the subject of an application for insolvency proceedings or similar;
7. has a bill or cheque they issued or accepted dishonoured, or is subject to a suspension of dealings by a clearing house or a similar measure;
8. is subject to an application for attachment, provisional attachment, an interim measure, enforcement or a forced sale;
9. is subject to enforcement proceedings for unpaid taxes and duties;
10. dies;
11. falls within any of the cases in Article 3(3);
12. is a user whose continued use of the Service the Company reasonably considers inappropriate for any other reason.
Where any of the above applies, the user automatically loses the benefit of any time to pay in respect of all sums owed to the Company and must pay them immediately.
The Company may terminate a sale contract for Products it has been unable to source, for example where they are out of stock.
The Company accepts no liability for loss suffered by the user as a result of steps taken under this Article.
Even where the use contract ends on expiry or termination, the sale contract concluded with the user remains validly in force; the use contract continues to have effect in relation to that sale contract.

Article 16 — No warranty and limitation of liability

Except where it expressly gives a warranty, the Company gives no warranty as to the material, functions, performance or any other quality of the Products. The Company will make reasonable efforts to keep items in stock but does not guarantee that the Products bought by the user can be sourced. The Service is provided as it is; the Company gives no warranty, including as to fitness for a particular purpose, commercial usefulness, completeness or continuity.
Even where the user has obtained information, directly or indirectly, about the Service, the Company website, other users or any other matter, the Company gives the user no warranty beyond what is set out in the Terms.
The Service may interoperate with external social network services, without that interoperation being guaranteed; except where the Company is at fault, it accepts no liability for problems with such interoperation.
Where the Service interoperates with an external social network service, the user must comply with the external social network terms at their own cost and responsibility; the Company accepts no liability for any dispute with the operator of that network arising from a breach of those terms.
It is for the user to check, at their own cost and responsibility, whether their use of the Service complies with the laws and trade body rules that apply to them; the Company gives no warranty as to that compliance.
Transactions, exchanges and disputes arising between the user and other users, external social network operators or third parties in connection with the Service or the Company website are for the user to handle and resolve; except where the Company is at fault, it accepts no liability in that respect.
Except where the Company is at fault, it accepts no liability to pay compensation for the interruption, suspension, discontinuation, unavailability or modification of the Service, the deletion or loss of the user’s messages or information, the cancellation of a registered user’s registration, the loss of data or the failure or damage of equipment arising from use of the Service, or any other loss suffered by the user in connection with the Service.
Even where a link is provided between the Company website and another website, the Company accepts no liability, except where it is at fault, for websites other than its own or for the information obtained from them.
Where the Company cannot perform its obligations under the use contract or the sale contract because of circumstances beyond its reasonable control (including fire, power cut, hacking, computer virus, earthquake, flood, war, epidemic, trade embargo, strike, riot, inability to secure goods and transport, intervention, direction or request by a public authority, or the making or amendment of legislation in Japan or abroad), it is not liable for non-performance for as long as those circumstances continue.
Even where the Company is liable to the user under consumer protection law or another mandatory rule, its liability to pay compensation is capped, except in cases of wilful misconduct or gross negligence on its part, at the amount of the Price under the sale contract concerned.

Article 17 — The user’s liability

The user must compensate the Company for any loss caused to it by a breach of the Terms or in connection with use of the Service.
Where the user is the subject of a claim or a dispute from other users, external social network operators or third parties in connection with the Service, they must tell the Company immediately, handle the claim or dispute at their own cost and responsibility, and report to the Company on its progress and outcome at its request.
Where the Company receives a claim from other users, external social network operators or third parties, for example for infringement of their rights, in connection with the user’s use of the Service, the user must compensate the Company for the sums it has been required to pay to that third party.

Article 18 — Confidentiality

In the Terms, “confidential information” means all information relating to the Company’s technology, sales, operations, finances, organisation and other matters that is provided or disclosed to the user in writing, orally or on a recording medium, or which the user learns, in connection with the use contract or the Service. Confidential information does not include: (1) information already public or already known to the user when it was provided, disclosed or learned; (2) information that became public through publication or otherwise, without fault on the user’s part, after it was provided, disclosed or learned; (3) information lawfully obtained from an authorised third party without any duty of confidence; (4) information developed independently without recourse to the confidential information; (5) information that the Company has confirmed in writing need not be kept confidential.
The user may use confidential information only for the purposes of using the Service, and must not provide, disclose or allow it to leak to third parties without the Company’s written consent.
Notwithstanding paragraph 2, the user may disclose confidential information where required to do so by law or by an order, requirement or request of a court or public authority. The user must then tell the Company without delay.
Where the user copies documents or magnetic media containing confidential information, they must first obtain the Company’s written consent and must manage the copies strictly in accordance with paragraph 2.
At the Company’s request, the user must at any time and without delay return or destroy, as the Company directs, the confidential information together with all documents and other media containing it and all copies.

Article 19 — Handling of personal data

The Company’s handling of the user’s personal data is governed by the privacy policy published separately; the user agrees that the Company will handle their personal data in accordance with that policy.
The Company may use and publish, at its discretion, the information and data provided by the user as statistics that do not identify any individual, and the user will not object to that.

Article 20 — Duration

The use contract takes effect on the day it is concluded under Article 3 and remains validly in force between the Company and the user until the earliest of: the cancellation of the user’s registration, the termination of the use contract, or the date the Service ceases to be provided.

Article 21 — Changes to the Terms

The Company may change the content of the Service freely.
The Company may amend the Terms (including the rules and other provisions relating to the Service published on its website). Where it does so, it will make the date the amended Terms take effect and their content known by posting them on its website or by another appropriate means, or will notify users. Where the law requires the user’s consent to the change, the Company will obtain it in the manner it specifies.

Article 22 — Contact and notices

Enquiries and other communications or notices from the user to the Company about the Service, and notices of changes to the Terms and other communications or notices from the Company to the user, are made in the manner specified by the Company.

Article 23 — Assignment

The user may not assign, transfer, charge or otherwise dispose of their position under the use contract and the sale contract, or of the rights and obligations arising under the Terms, to a third party without the Company’s prior written consent.
Where the Company transfers the business relating to the Service to a third party (by business transfer, demerger or in any other form), it may transfer to the transferee, together with that business, its position under the use contract and the sale contract, the rights and obligations arising under the Terms and the registration information and other user information; the user gives their consent to that transfer in advance under this paragraph.

Article 24 — Entire agreement

The Terms constitute the entire agreement between the Company and the user on the matters they cover and supersede any prior agreement, representation or understanding between them on those matters, whether oral or in writing.

Article 25 — Severability

If any provision of the Terms, or part of one, is held to be void or unenforceable under consumer protection law or another legal provision, the remaining provisions and the remainder of the provision concerned remain in full force; the Company and the user will endeavour to amend the void or unenforceable provision or part to the extent needed to make it lawful and enforceable and to give it equivalent legal and economic effect.

Article 26 — Surviving provisions

Provisions which by their nature are intended to survive the end of the use contract, including Article 17, remain validly in force after it ends.

Article 27 — Governing law and jurisdiction

The Terms are governed by Japanese law. Any dispute arising out of or in connection with the Terms falls within the exclusive jurisdiction, at first instance, of the Tokyo District Court or the Tokyo Summary Court.

Article 28 — Resolution by discussion

Where a matter is not covered by the Terms, or a doubt arises as to their interpretation, the Company and the user will endeavour to reach a prompt resolution through discussion, in good faith.

[Revised version of 1 May 2026]