Terms of Service

Terms of Service

Operator: 주식회사 유마인솔루션 (Umine Solution Co., Ltd.)·Effective: August 25, 2025

Article 1 (Purpose)

These Terms of Service (the “Terms”) set out the rights, obligations, and responsibilities between Umine Solution, which operates the “CrushOn Korean” service (the “Service”), and its members, together with the conditions and procedures for using the Service and other necessary matters.

Article 2 (Definitions)

The terms used in these Terms are defined as follows. Terms not defined here follow relevant laws and general commercial practice.

  1. “Service” means the CrushOn Korean web application and all related features the Company provides, regardless of the device used (PCs, mobile devices, and other wired or wireless devices), including AI character chat, AI vocabulary learning, the community, online courses, and paid features.
  2. “Member” means a person who accesses the Service, agrees to these Terms, and creates an account to use the Service.
  3. “Account” means the user record created when a Member signs in through a third-party authentication provider (Google) supported by the Company. The Service does not use a separately created login ID and password; authentication is delegated to the third-party provider.
  4. “Paid Service” means any digital content or feature the Company offers for a fee, including paid course enrollments and Point packages.
  5. “Points” means virtual data within the Service that has no monetary value and is not legal tender, granted, charged, deducted, or adjusted by the Company to support use of the Service (for example, deducted when AI features are used).
  6. “AI Content”means text and other output generated by automated artificial-intelligence systems in response to a Member’s input, including the messages of AI characters.
  7. “Mature Content” means content classified by the Company as suitable only for adults, access to which is restricted by age.
  8. “Posts” means text, images, links, comments, reviews, ratings, and other information a Member uploads or transmits within the Service.

Article 3 (Posting and Amendment of the Terms)

  1. The Company posts these Terms within the Service so that Members can readily review them.
  2. The Company may amend these Terms within the scope permitted by relevant laws, including the Act on the Regulation of Terms and Conditions and the Act on Promotion of Information and Communications Network Utilization and Information Protection (the “Information and Communications Network Act”).
  3. When the Company amends these Terms, it announces the effective date and the reasons for the amendment together with the current Terms, from at least 7 days before the effective date until the day before it. Where an amendment is unfavorable to Members or concerns material matters, the Company announces it at least 30 days in advance and additionally provides separate notice through electronic means within the Service, such as a login prompt.
  4. Where the Company has clearly notified, under Paragraph 3, that a failure to express an objection within the notice period will be deemed acceptance, a Member who does not expressly object by the effective date is deemed to have agreed to the amended Terms.
  5. A Member who does not agree to the amended Terms may stop using the Service and terminate the service agreement.

Article 4 (Interpretation of the Terms)

  1. The Company may establish separate terms and policies for Paid Services and individual services (the “Individual Terms”). Where Individual Terms conflict with these Terms, the Individual Terms prevail for the relevant service.
  2. Matters not provided for in these Terms are governed by the Individual Terms, applicable laws, and general commercial practice.

Article 5 (Conclusion of the Service Agreement)

  1. The service agreement is concluded when a person who wishes to become a Member agrees to these Terms, completes sign-in through a supported authentication provider, and the Company accepts the application.
  2. The Company, in principle, accepts applications to use the Service. However, the Company may decline an application, or later terminate the agreement, in any of the following cases:
    1. The applicant previously lost membership under these Terms (except where the Company has approved re-registration);
    2. The application uses another person’s identity or authentication credentials, or false information;
    3. The applicant is a child under 14 years of age and applies without the consent of a legal representative;
    4. Approval is impossible due to reasons attributable to the applicant, or the application otherwise violates these Terms or applicable law.
  3. The Company may withhold acceptance where it lacks capacity in service facilities, or where technical or operational obstacles exist.
  4. The service agreement takes effect when the Company indicates that registration is complete.
  5. The Company may classify Members into grades and differentiate the scope of use, features, and other usage rights according to Company policy.
  6. To comply with rating and age requirements under the Juvenile Protection Act and similar laws, the Company may restrict access to certain content, including Mature Content, based on a Member’s verified age.

Article 6 (Account and Member Information)

  1. Authentication is provided through a third-party provider (Google). The Company does notcreate or store a Member’s password. A Member’s protection of their authentication provider account is the Member’s own responsibility.
  2. A Member may view and modify the profile information they provide (such as display name, learning level, and learning notes) through the Service at any time.
  3. If information provided to the Company changes, the Member shall update it without delay. The Company is not responsible for disadvantages arising from a Member’s failure to do so.

Article 7 (Protection of Personal Information)

The Company endeavors to protect Members’ personal information in accordance with relevant laws, including the Personal Information Protection Act and the Information and Communications Network Act. The collection, use, and protection of personal information are governed by applicable laws and the Company’s separate Privacy Policy. The Privacy Policy does not apply to third-party services linked from the Service.

Article 8 (Account Security)

  1. A Member is responsible for managing access to their Account and shall not allow a third party to use it.
  2. If a Member becomes aware that their Account or authentication credentials have been stolen or used by a third party, the Member shall immediately notify the Company and follow the Company’s instructions.
  3. The Company is not responsible for any disadvantage arising from a Member’s failure to notify the Company under Paragraph 2, or from failure to follow the Company’s instructions even after such notification, except where caused by the Company’s intent or gross negligence.

Article 9 (Notice to Members)

  1. Unless otherwise provided in these Terms, the Company may give notice to a Member through the email address linked to the Account, in-Service messages, or similar means.
  2. For notices to all Members, the Company may post the notice within the Service for at least 7 days in lieu of individual notice.

Article 10 (Company’s Obligations)

  1. The Company does not engage in acts prohibited by applicable law or these Terms, or contrary to public morals, and uses reasonable efforts to provide the Service continuously and reliably.
  2. The Company maintains a security system to protect personal information and publishes and complies with its Privacy Policy.
  3. Where the Company recognizes that a Member’s opinion or complaint is justified, it handles the matter and communicates the process and outcome to the Member.

Article 11 (Member’s Obligations)

  1. A Member shall not engage in any of the following:
    1. Registering false information or stealing another person’s information or authentication credentials;
    2. Infringing the intellectual property rights or other rights of the Company or any third party;
    3. Damaging the reputation of, or interfering with the business of, the Company or any third party;
    4. Posting or transmitting obscene, violent, discriminatory, or other content contrary to public order, or content that violates applicable law;
    5. Using the Service for commercial purposes without the Company’s consent;
    6. Attempting to interfere with, reverse-engineer, scrape, overload, or gain unauthorized access to the Service or its systems, or to extract underlying prompts, models, or data through automated or manipulative means;
    7. Using AI features to generate or distribute content that is illegal, that harms minors, or that violates the rights of others;
    8. Any other illegal or improper act, or act that interferes with the Company’s operations.
  2. A Member shall comply with applicable laws, these Terms, usage guidelines, and matters notified by the Company in connection with the Service.

Article 12 (Provision of the Service)

  1. The Company provides the following services to Members:
    1. AI character chat — Korean-language conversation practice with AI characters;
    2. AI vocabulary learning — flashcard-based vocabulary study (including spaced-repetition review);
    3. Community — boards, comments, likes, and reviews;
    4. Online courses — video lessons, text lessons, and quizzes, and related learning-progress features;
    5. Paid features — Point packages and paid course enrollments;
    6. Any other services the Company develops or provides through partnerships.
  2. The Service is, in principle, available 24 hours a day, year-round.
  3. The Company may temporarily suspend all or part of the Service for maintenance, replacement, or repair of equipment, communication outages, or other significant operational reasons. In such cases, the Company gives notice under Article 9; where advance notice is not feasible for unavoidable reasons, it may give notice afterward.
  4. The Company may divide the Service into specific scopes and set separate available hours for each, with prior notice.

Article 13 (AI Content and Disclaimer)

  1. AI characters are fictional. They are not real persons, and any names, personas, or statements are works of fiction created for language-learning and entertainment purposes.
  2. AI Content is generated automatically and may be inaccurate, incomplete, or inappropriate. AI Content does not represent the views of the Company and does not constitute professional advice of any kind (including medical, legal, financial, or psychological advice).
  3. A Member must independently verify AI Content before relying on it. To the maximum extent permitted by applicable law, the Company is not liable for any result arising from a Member’s reliance on AI Content.
  4. The Company may apply automated and manual moderation to maintain the safety and quality of the Service, and may restrict input or output that violates these Terms or applicable law.

Article 14 (Mature Content)

  1. The Company may provide Mature Content intended only for users aged 18 or older. Access requires age verification through the date of birth provided by the Member and the Member’s separate consent.
  2. A Member shall not provide false age information to access Mature Content. The Company is not responsible for consequences arising from a Member’s false age information, to the extent permitted by applicable law.
  3. The Company may restrict or remove access to Mature Content according to applicable law and Company policy.

Article 15 (Points)

  1. Points are virtual data with no monetary value and cannot be exchanged for cash. Points may be deducted when a Member uses paid features such as AI chat.
  2. Points are non-transferable and may not be sold, pledged, or otherwise disposed of to a third party.
  3. The Company may set or adjust the grant, deduction, and validity period of Points with prior notice, and Points may expire after a period the Company determines. Free or promotional Points may be adjusted or expired according to Company policy.
  4. Refunds relating to paid Points follow Article 17 and applicable law, including the Act on the Consumer Protection in Electronic Commerce.

Article 16 (Paid Services and Payment)

  1. Payment for Paid Services is processed through a third-party payment provider (Paddle), which may act as the merchant of record. The provider handles payment-card and billing information in accordance with its own terms and policies; the Company does not store full payment-card details.
  2. A Member shall provide accurate payment information and use only payment means they are entitled to use.
  3. Prices, billing cycles, and the contents of Paid Services are as displayed at the time of purchase.

Article 17 (Withdrawal of Subscription and Refunds)

  1. A Member may withdraw a purchase of a Paid Service in accordance with the Act on the Consumer Protection in Electronic Commerce and other applicable laws.
  2. For digital content that can be used or consumed immediately, the right of withdrawal may be restricted to the extent permitted by applicable law, where the Company has clearly indicated this before purchase and taken the measures required by law (for example, providing trial access or a portion of the content). This includes Points that have been used and course content that has been accessed.
  3. Refund requests are handled in accordance with applicable law and the Company’s refund policy, and refunds for payments made through the third-party payment provider are processed through that provider.

Article 18 (Provision of Information and Advertisements)

  1. The Company may provide Members with information necessary for use of the Service through in-Service notices, email, and similar means. Except for transaction-related information and responses to inquiries required by law, a Member may opt out of marketing communications at any time.
  2. The Company may display advertisements in connection with operating the Service. A Member who does not wish to receive advertising communications may notify the Company.

Article 19 (Copyright and Management of Posts)

  1. Copyright in a Post created by a Member belongs to the author of that Post.
  2. By uploading a Post, a Member grants the Company a worldwide, non-exclusive, royalty-free license to use, store, reproduce, modify (to the extent necessary), and display the Post for the purpose of operating, providing, and promoting the Service. This license continues as necessary even after the Post is deleted, only to the extent that the Post has been re-shared by other users or retained as required by law.
  3. Where a Post violates applicable law or these Terms, or infringes the rights of a third party, the Company may, with or without a request from the rights holder, take temporary measures or delete the Post in accordance with applicable law, including the Information and Communications Network Act and the Copyright Act.
  4. A Member may delete their own Posts or request that they be made private at any time through the Service.

Article 20 (Ownership of Rights)

  1. Copyright and other intellectual property rights in the Service belong to the Company, except for Members’ Posts and works provided under partnership agreements.
  2. The Company grants Members only the right to use the Account, content, Points, and similar items under the conditions set by the Company. Members may not transfer, sell, pledge, or otherwise dispose of these rights.

Article 21 (Changes to the Service)

  1. The Company may change all or part of the Service where there are reasonable operational or technical grounds, and announces material changes in advance within the Service.
  2. The Company may modify, suspend, or discontinue all or part of any service provided free of charge according to operational needs, and, unless specifically required by applicable law, provides no separate compensation for such changes.

Article 22 (Cancellation and Termination of the Agreement)

  1. A Member may terminate the service agreement at any time through the account settings within the Service or through customer support, and the Company processes such requests without delay in accordance with applicable law.
  2. Upon termination, the Member’s personal information is destroyed in accordance with the Privacy Policy and applicable law, except for information the Company is required to retain by law.
  3. Upon termination, Posts registered to the Member’s Account are deleted. However, Posts that have been re-shared by other users, or that remain on public boards, may not be deleted; a Member who wishes to delete such Posts should do so before termination.

Article 23 (Restrictions on Use)

  1. Where a Member breaches these Terms or interferes with normal operation of the Service, the Company may impose graduated restrictions, including warnings, temporary suspension, and permanent suspension.
  2. Notwithstanding Paragraph 1, the Company may impose immediate permanent suspension where a Member commits a serious violation of law, such as identity or payment fraud, distribution of illegal programs or malicious code, or unauthorized access. In such case, Points and benefits obtained through use of the Service may also be extinguished, without separate compensation, except as required by applicable law.
  3. The Company may restrict or terminate the Account of a Member who has not signed in for a continuous period of 12 months or more, after prior notice, to protect Member information and ensure operational efficiency, in accordance with applicable law.
  4. Where the Company restricts use or terminates the agreement under this Article, it gives notice under Article 9. A Member may object in accordance with the procedures established by the Company, and if the objection is justified, the Company promptly resumes the Member’s use.

Article 24 (Limitation of Liability)

  1. The Company is exempt from liability for failure to provide the Service due to a natural disaster, war, or other equivalent event of force majeure, or due to causes attributable to the Member.
  2. The Service and any service provided free of charge are provided on an “as is” basis, and the Company does not guarantee the accuracy, completeness, reliability, or fitness for a particular purpose of the Service, AI Content, or information posted by Members, except as specifically required by applicable law.
  3. The Company is not liable for the content, accuracy, or reliability of information or materials posted by Members, or for transactions or disputes between Members, or between a Member and a third party, conducted through the Service.
  4. The Company is not liable for problems arising from third-party services used in connection with the Service (including the authentication, payment, AI, and video-hosting providers), which are governed by those third parties’ own terms.
  5. To the maximum extent permitted by applicable law,the Company is not liable for indirect, incidental, special, or consequential damages, or for lost profits or lost data. The Company’s total liability to a Member in connection with the Service is limited to the amount the Member paid to the Company for the relevant Paid Service during the preceding three (3) months.
  6. Nothing in these Terms excludes or limits the Company’s liability that cannot be excluded or limited under applicable law, including liability arising from the Company’s intent or gross negligence.

Article 25 (Indemnification)

A Member shall indemnify and hold the Company harmless from claims, damages, and expenses (including reasonable legal fees) arising from the Member’s violation of these Terms or applicable law, or from the Member’s Posts or use of the Service, except to the extent caused by the Company’s intent or gross negligence.

Article 26 (Governing Law and Jurisdiction)

  1. These Terms and the use of the Service are governed by the laws of the Republic of Korea.
  2. Any dispute between the Company and a Member is subject to the competent court determined under the Civil Procedure Act of the Republic of Korea.

Supplementary Provisions

These Terms take effect on August 25, 2025.