KKUSA Terms of Service


Article 1 Purpose

The purpose of these Terms is to stipulate the rights, obligations, compliance, and responsibilities of the company and members in relation to the services provided by MUSTGAMES Co., Ltd. (hereinafter referred to as the Company) and other necessary matters such as service usage conditions.


Article 2 Terms and definitions

The terms and definitions used in these terms and conditions are as follows.

1. KKUSA Service (hereinafter referred to as the Service) is a service provided by the Company through a PC or mobile device, and refers to web services, applications, various contents, customer support and related services used by members through a PC or mobile device.

2. Mobile device refers to a mobile phone, smartphone, tablet, portable game console, or other device that can be used after downloading and installing digital content or can be used through a network.

3. Member refers to a customer who accesses the Company’s services, concludes a usage contract with the Company in accordance with these Terms and Conditions, and uses the services provided by the Company.

4. Open Market Operator refers to an e-commerce company that provides service installation and payment functions. (Google Play, Apple App Store, Tea Store, etc.)

5. Payment companies are companies that provide electronic payment methods available in the open market, such as credit cards and mobile phone payments.

6. Paid payment refers to the payment behavior to purchase products sold for a fee in the service.

7. Paid product refers to a product in the service purchased through paid payment.

8. Member withdrawal refers to a member’s termination of the use contract with the company.

9. The definitions of terms used in these Terms shall be as stipulated by relevant laws, other general correlative cases, and service-specific policies, except for those in Article 2, Paragraphs 1 through 8.


Article 3 Effectiveness, changes of the terms and conditions

1. These Terms shall be posted on the Company’s website or service so that members can easily recognize them.

2. If the Company revises these Terms and Conditions, it shall make a prior notice in the Service from 7 days before the date of application to the day before the date of application, specifying the date of application, the contents of the revision, and the reason for the revision, and shall notify it using any electronic means available, such as an e-mail address (E-mail). However, if it is unfavorable to the member or revises important contents of the Terms and Conditions, it shall be notified with a grace period of at least 30 days, taking into account the member’s reasonable judgment and the time available for confirmation.

3. Members have the right to reject the revised Terms. Members must fulfill their duty of care regarding changes to the Terms and Conditions, and if they do not agree to the revised Terms and Conditions, they may stop using the Service and withdraw their membership. However, if the member does not indicate the intention to ‘terminate the use contract by refusing to agree to the revised terms (withdrawal of membership)’ even after the effective date of the revised terms, the member is deemed to have agreed to the changes in the terms.

4. Members are obligated to check for changes in these Terms while using the service regularly, and the Company shall not be liable if a member who has agreed to the revised Terms suffers damage due to changes in the Terms or if damage occurs due to the member’s negligence in not knowing the contents of the revised Terms.


Article 4 Entering into a service use agreement

1. The use contract shall be entered into by the request of the members for the use of service, including the installation of the application and consent to the terms and conditions, and the acceptance of such request from the members by the Company.

2. Consent to the terms and conditions shall be expressed by agreeing to the terms and conditions provided by the Company on its website, or by the collection of personal information in the application together with the agreement to the statement, “I agree to the terms and conditions associated with the use of KKUSA service.” The agreement is entered into immediately when the application is run. Running the application without the process of consent prior to the revision date or effective date shall be deemed as consent. However, if member does not agree, the member may cancel his or her consent by logging out of the application and deleting it.


Article 5 Termination of contract and service use

1. If the member does not want to use the service, he/she may apply for withdrawal using the menu provided by the company within the service or terminate the use contract at any time through the customer center.

2. In the event of the withdrawal of membership, all the information of contents the member possesses at the time of withdrawal is deleted and is not recoverable.

3. Members’ personal information is processed in accordance with the Company’s Privacy Policy.

4. In any of the following circumstances, the use contract may be terminated or the service use may be restricted for a specific period of time.

(1) Member registers false information at the time of application for service use

(2) Member intentionally disturbs or hinders the operation of services

(3) Member illegally uses another person’s service ID and password

(4) Member transmits a large amount of information or advertisement information for the purpose of disturbing the stable operation of services

(5) Member circulates computer virus programs, causing damages to the Company and/or members

(6) Member defames another person’s reputation, or engages in acts causing disadvantages to another person

(7) Member infringes the intellectual property rights belonging to the Company, another member or a third party

(8) Member reproduces or distributes information obtained from the service provided by the Company without prior approval from the Company, uses such information for commercial purposes, or transmits messages in the name of the Company

(9) Member inserts pornography or links to pornographic sites into the service

(10) Member engages in other violations of Company’s service policy

5. In the event of the termination or suspension of the use contract according to the previous provision above, the applicable member shall neither be able to use the contents downloaded, nor be eligible for the refund of the prepayments of paid contents, data use charges and monthly plan.


Article 6 Protection and use of personal information

1. The Company shall strive to protect the personal information of member in accordance with the related laws and regulations, and shall comply with the related laws and regulations as well as the Company’s policy on privacy protection. However, the Company’s privacy policy does not apply to websites linked to the Company’s official website.

2. Depending on the characteristics of the service, the member’s nickname and photo or other information introducing him or herself may be disclosed.

3. Member must provide truthful information when providing information to Company under these terms, and member will not be protected against any disadvantage caused by member providing false information.

4. The Company shall not be liable for any information, including the member’s account information, that is exposed due to reasons attributable to the member.


Article 7 Company’s obligations

1. If an opinion or complaint raised by the member is deemed to be objectively legitimate, the company shall take appropriate action within a reasonable period of time. However, if immediate handling is impossible or impractical, the Company shall report the reason for the delay in corrective action and the expected handling schedule to the member.

2. The company shall protect the member’s personal or privacy information including his or her account information, not only to prevent a leak from the service system under the Company’s control but also to prevent its disclosure or provision to a third party.

3. In the event of equipment failure or loss of data during the service improvement activities for constant and stable service, the company shall strive to repair or restore the situation without delay unless there are unavoidable factors such as natural disasters, emergency situations or technical difficulties that are difficult or impossible to resolve.


Article 8 Member’s obligations

1. Members shall comply with the provisions specified in these terms and conditions, other related regulations defined by the Company and notifications from the Company. In addition, the member shall not perform any act that may disturb the Company’s activities or besmirch the Company’s reputation.

2. Members shall comply with the related laws and regulations including the Juvenile Protection Act. Violation of related laws and regulations including the Juvenile Protection Act shall be punished pursuant to the applicable laws and regulations.

3. Members shall not be allowed to engage in any business activities using the service provided by the Company without the prior approval of the Company, and the responsibility for the outcomes of such business activities shall lie with the member. In addition, if such business activities performed by the member cause any damages to the Company, the Company may restrict the use of the service for the member or demand the member pay compensation for losses to the Company through legal procedures.

4. Members shall frequently check the notifications posted on the Company’s website and changes in the terms and conditions.

5. Members are responsible for managing their accounts and mobile devices, and must not allow third parties to use them. The Company shall not be liable for any damages arising from the mismanagement of accounts, mobile devices, etc. or from authorizing third parties to use them.

6. Members shall not use or steal other people’s credit cards, mobile phones, etc. without authorization to pay for paid services.


Article 9 Use of service

1. The Company shall provide its services 24 hours a day and 7 days a week unless there is an operational or technical problem.

2. Notwithstanding Paragraph 1 above, the Company may not provide the Service in any of the following cases, in which case the Company shall not be obligated to provide the Service.

(1) When necessary for facility inspection, replacement, periodic inspection, or modification of content or service.

(2) When necessary to respond to infringement incidents such as hacking, abnormal usage behavior of members, or unpredictable service instability.

(3) When it is impossible to provide normal services due to natural disasters, wars, emergencies, power outages, equipment failures, communication network failures, overflow of service members, etc.

(4) When laws and regulations prohibit the provision of services to certain members.

3. The company provides services using a dedicated application or network for mobile devices, and members can use the service for free or for a fee by downloading and installing the application or using the network.

4. In the case of paid content, it can be used only by paying a separate fee specified in the service, and some paid content may contain a paid payment function.

5. Free content is available for free. However, please be sure to check before purchasing as free content may also contain paid features.

6. If you download an application or use a service over a network, you may incur additional charges set by your carrier, such as data usage fees, so we recommend downloading using Wi-Fi.

7. The Company may notify members of matters relating to service inspection, changes in terms and conditions, service operation, various events, and updates through the community service or notices within the service, and members should check the notices from time to time. The Company is not responsible for damages caused by members’ failure to check the notices. However, if serious and obvious damages are expected to the member, the Company will give separate notice to the member.


Article 10 Change and termination of service

1. The Company may change all or part of the Service at any time if necessary for the operation of the Service, such as new content content and various bug patches. The Company shall not be liable for any damages arising from the loss of the member’s expected revenue due to the change of the service or the loss of benefits not directly provided by the Company.

2. The Company may suspend some or all of the Services due to technical or operational needs, and in this case, the Company may suspend the provision of the Services with 30 days’ notice. If there are unavoidable circumstances that cannot be notified in advance, it may be notified afterward.

3. The Company may limit or suspend the provision of the Service in part or in whole if other force majeure reasons such as natural disasters, national emergencies, serious changes in the operation of the Service occur or are expected to occur, and if the normal provision of the Service is difficult due to the Company’s division, merger, transfer of business, abolition of business, deterioration of the profit of the Service, or other circumstances.

4. If the Company suspends all of the Services pursuant to the provisions of Paragraphs 2 and 3, the Member shall not be entitled to claim compensation for paid products that have no remaining usage period. In the case of paid products that do not display a usage period, the end date of the service announced at the time of the service suspension notice shall be considered as the usage period of the paid product.


Article 11 Limitation of service use

Members shall not engage in any of the following acts, and in the event of such acts, the Company may impose restrictions on the use of the service, including restricting the member’s use of the service, deleting related information (articles, photos, videos, etc.), and taking legal measures. In addition, the member shall be responsible for any problems caused by the member, and the Company shall not compensate the member for any damages caused by the member if the member’s restriction of use is justified.

1. Input of false information at the time of application, changes or registration, or deception on others.

2. Illegal use of another person’s information

3. Change to the program belonging to the Company without any authority granted by the Company, hacking of the Company’s server(s), arbitrary change to all or part of the Company’s website or information posted thereon or abnormal use of service provided by the Company

4. Impersonation of an executive or employee of the Company

5. Abuse of bugs detected in the program developed by the Company

6. Acquisition, transfer or trading of service assets (ID, Picture etc.) in an abnormal or unauthorized manner.

7. Harm to service or intentional service disturbance

8. Any business activities using the Company’s service without prior approval

9. Reproduction of information obtained from the Company’s service for purposes other than the use of the service without prior approval from the Company, use of such information for publishing or broadcasting purposes or provision of such information to a third party

10. Circulation of content that infringes patents, trademarks, confidential operational information, copyrights or other intellectual property rights, through transmission, post or other available means

11. Circulation of vulgar or obscene contents in the form of information, text, images, sound or video which are in breach of the Juvenile Protection Act or other laws through transmission, post or other available means

12. Circulation of vulgar or obscene contents that depict criminal acts or incite criminal acts in the form of information, text, images, sound or video that are against public order and morals, by means of email or other available means

13. Circulation of contents by means of transmission, post or other available means, which are severely insulting or related to personal information that may defame or infringe another person’s reputation or privacy

14. Harassment or threats against other member(s), or action against a particular member that causes pain or discomfort in a continual manner

15. Collection or storage of personal information of other member(s) without approval from the Company

16. An act that is objectively judged to be related to crime

17. Violation of these terms and regulations as well as related rules and/or use conditions defined by the Company

18. Other acts in violation of other related laws and regulations

19. Medical and criminal purposes or causing the commission of a crime


Article 12 Provision of information and Insertion of Advertisements

1. The Company may insert advertisement(s) in order to maintain the service, and the member shall agree to the insertion of advertisements that will be exposed while using the service.

2. The Company shall not take any responsibility for damages or losses generated from the participation, communication or transaction by the member with the advertisement specified in Paragraph 1 above, which is provided by the Company but is subject to a third party.

3. The company may request additional personal information of the member for the purpose of service improvement or service introduction. The member may accept or refuse the request to provide his or her additional personal information.

4. The advertisements specified in Paragraph 1 above or information specified in Paragraph 3 above provided using the personal information collected from the member with prior consent may be sent or forwarded via SMS, smartphone notification or email, and the member may refuse to receive such advertisement or information at any time.


Article 13 Attribution and restriction of copyrights and works

1. Members are responsible for the rights and responsibilities of works created and posted by members while using the service. Members shall guarantee that the works posted by them do not infringe on the intellectual property rights, portrait rights, and ownership rights, including copyrights, of third parties, and the Company shall not be liable for any disputes, damages, etc. arising from such posts.

2. Copyrights and other intellectual property rights to works created by the Company belong to the Company.

3. You are prohibited from infringing any copyright or other rights of other members or third parties when using the Service. You are solely responsible for any disputes arising in connection with copyright while using the Service.

4. The Company may delete, modify, move, refuse to register, etc., and restrict or disqualify a member without prior notice in any of the following cases.

(1) Post includes content that defames, infringes privacy or affects the reputation of another member or a third party

(2) There is a possibility that the post may adversely affect the stable operation of services

(3) The post is considered to be related to criminal acts

(4) The post includes content that infringes the intellectual property right or other rights of the Company or a third party

(5) If it is a spammy post

(6) If the post is inconsistent with the nature of the bulletin board

(7) If the service is discontinued due to the operation of the service or the company’s circumstances

(8) When it is deemed necessary to protect personal information

(9) In case of violation of other relevant laws and regulations and various operating policies of the Company

5. We may use the posts you make for the purposes of related services (such as promotion and marketing) that we provide domestically and internationally, and to the extent permitted by applicable law, including copyright law.

6. If the Company determines that a particular post constitutes defamation or infringement of intellectual property rights, portrait rights, ownership rights, privacy rights, etc., the Company may take action against the relevant post or material without prior notice to the poster, and thereafter delete or restore it in accordance with the agreement between the parties, relevant laws and regulations, and the Company’s policies.

7. A member whose legal interests are infringed by information posted on a bulletin board operated by the Company may request the Company to delete the information or post a refutation. In this case, the Company shall promptly take necessary measures and notify the applicant.

8. If the Company receives a claim for damages from another party on the grounds that the Member’s post infringes on the rights of another party, such as intellectual property rights or portrait rights, the Member who made the post shall actively cooperate with the Company to indemnify the Company, and if the Company is unable to indemnify the Member, the Member shall be liable for any damages caused thereby.

9. If a member’s post is challenged by a third party on the grounds of defamation, copyright, portrait right, etc. and it is judged that there is a substantial reason for it, or if a lawsuit, settlement, or other equivalent institutional decision between a third party and a member is made and received by the company, the company may delete it or refuse to register it even without the prior consent of the member, and the suspension of posting of the post due to other rights infringement shall be in accordance with relevant laws.


Article 14 Payment

1. The price of paid products is based on the price displayed within the service, but the actual amount charged may differ from the estimated payment amount at the time of purchase due to exchange rates and fees for foreign currency payments.

2. Payment amount for a unit of paid content shall be charged according to the policy and method specified by the wireless carrier or app store operator, and payment shall also be made in accordance with the prescribed method. Payment limits may be granted or adjusted for each payment method depending on the Company and the payment method provider (wireless carrier, app store, etc.) and the government’s policy.

3. If the member does not use the password setting function for the terminal or open market, or inadvertently exposes his or her password, the Company take no responsibility for any consequential damages or losses such as payment to a third party.


Article 15 Withdrawal of subscription

1. Paid products purchased by members are categorized into paid products that can be canceled and paid products that cannot be canceled. Paid products that can be canceled can be canceled within 7 days of purchase.

2. Subscription withdrawal is limited in the following cases.

(1) In the case of goods that begin to be used or applied immediately after purchase

(2) In the case of products that have been provided free of charge in the course of using the service

(3) In the case of products that come with additional benefits, and the additional benefits are used.

(4) A part of a product sold in a bundle is used.

(5) In the case of goods where the act of opening can be viewed as use or where the utility is determined upon opening.

(6) If the product was given to the member for free by the company

(7) Products received as a gift from another person.

3. Even for paid products that can be withdrawn, the withdrawal may be restricted if 7 days have passed since the purchase, or if the value of the goods has decreased significantly, or if other reasons that may restrict the member’s withdrawal have occurred.

4. The purchase of paid contents on sale in the application by a minor without consent from his or her legal representative may be cancelled by the minor or the legal representative. However, if such payment is within the scope of property that is permitted or approved by the legal representative to be spent or disposed of by the minor, or resulted from the minor’s act of deceiving the Company into believing that he or she was a legitimate adult, the cancellation may be restricted. The verification of whether or not the member purchasing paid contents is a minor shall be based on the information for the payment method, such as the terminal or credit card with which the payment is made. If a minor requests the cancellation of a payment that has already been made, the documentary evidence demonstrating the identity of the minor and his or her legal representative may be required to be submitted, where necessary.


Article 16 Refund of purchase price

1. If any of the following cases apply to a paid product, you may apply for a refund through the Customer Center.

(1) If you purchased a paid product, but there is no service available and the Company is solely responsible for it (except in the case of pre- or post-announced service inspection, etc.)

(2) In other cases determined by the Company for consumer protection.

2. A member who wants a refund of paid goods must apply for a refund through the procedure established by the Company, and the Company will examine whether the refund application is justified.

3. If the company decides to refund the member’s refund application, it will be processed in accordance with the refund policy of the open market operator.

4. Products not directly purchased by the Member, such as paid products provided by the Company to the Member for free or received as a gift from another Member, are not eligible for refund.


Article 17 Compensation for damages

1. The Company takes no responsibility for any damages to the member related to the use of the free service provided by the Company.

2. If the paid content or paid products are damaged, destroyed, or deleted due to a material defect in the service provided by the Company, the Company will compensate using appropriate means.

3. For an individual service provided to the member by the Company in partnership with an individual service provider along with the member’s consent to the terms and conditions for the individual service, the responsibility for any damages to the member that are attributable to the individual service provider shall lie with the individual service provider.

4. Any damages to the Company that are attributable to the member violating his or her obligations specified in these terms and conditions or that have been caused by the member while using the service shall be compensated by the member.

5. If the Company is subject to a lawsuit or complaint including a damage claim suit from a third party due to an illegal act or a violation of these terms and conditions by the member in the course of using the service, the applicable member shall be responsible for indemnifying the Company at his or her own expense. If the member fails to indemnify the Company, the member shall be responsible for making compensation for any consequential damages to the Company.


Article 18 Disclaimers

1. In the event that it is impractical to provide services due to natural disaster or equivalent force majeure, the Company shall be exempted from all responsibilities related to the service provision.

2. The Company shall be exempted from all responsibilities related to damages attributable to unavoidable reasons such as maintenance, replacement, regular inspection or installation of service equipment.

3. The Company does not take any responsibility for the suspension or failure of service attributable to the member. The Company shall be exempted from all responsibilities for damages to the member if such damages originated from the suspension or abnormal provision of communication service by the key telecommunication service provider.

4. The Company does not take any responsibility for the credibility, accuracy, etc. of the information and materials posted by the member with regard to the service.

5. The Company is not obliged to intervene in a conflict between members or between a member and a third party in terms of or in the process of service use, and is not responsible for making compensation for any damages thereof.

6. Free services and contents provided by the Company are not included in the scope of damages subject to compensation.

7. The Company shall not take any responsibility for problems caused by faults or malfunctions of the member’s terminal environment or network environment which are not attributable to the Company.

8. The Company shall be exempted from liability for any disadvantages and loss of information obtained by changing the Member’s personal information, etc. (including accounts).

9. The Company shall not be liable for any damages caused by a member’s refusal to receive information provided by the Company.

10. The Company shall not be liable for any loss or failure to obtain the benefits expected from the use of the Service by the Member.

11. Members shall use various security features to prevent third-party access and payment. The Company shall not be liable for third-party access and payment caused by the member’s negligence.

12. If you change your device, change your number, roam overseas, switch carriers, etc., you may not be able to use all or some of the features of the Service, for which the Company shall not be liable.

13. If you delete a service (application, etc.) provided by the Company, you must be careful in deleting it as usage information, etc. may be deleted, and the Company is not responsible for this.

14. The Company is not responsible for any issues arising from the use of the Temporary Member feature.


Article 19 Rules and regulations other than the terms and conditions

These Terms apply together with the separate operating policies and rules for the services provided by the Company.


Article 20 Jurisdiction and applicable law

1. If an issue not specified in these terms and conditions is defined by related laws and regulations, such issue shall be handled in accordance with the applicable laws and regulations.

2. Any litigation over the conflict between the Company and the member with regard to the use of service shall be filed to the court of competent jurisdiction based on the related laws such as the Civil Procedure Code.

3. Litigation between the Company and the member shall be subject to the laws of the Republic of Korea.


These Terms are effective as of November 1, 2023.