Terms of Service

Last Updated: July 15, 2026

1. Introduction

Welcome to Mudangbibi (the “Service”). These Terms of Service (“Terms”) govern your use of the Service provided by Bangguseok Company (“Company”, “we”, “us”, or “our”), a company located in the Republic of Korea.

By accessing or using our Service, you agree to be bound by these Terms. If you do not agree to these Terms, you may not use the Service.

2. Definitions

  1. “Member” means a person who has provided personal information to the Company and completed account registration, and who is entitled to receive ongoing service from the Company.
  2. “ID” means the combination of letters and numbers (or an email address) chosen by the Member and approved by the Company for identification and use of the Service.
  3. “Password” means the combination of letters, numbers, or special characters chosen by the Member to verify identity and protect confidentiality of the account.
  4. “AI Tools” means the chatbot, fortune-interpretation, and other automated-response features provided through external AI model providers (e.g., OpenAI, Google) or the Company’s own models.

3. Eligibility & Account

(a) Age Restrictions: You must be at least 16 years old to use this Service. If you are 16 or 17 years old (or otherwise under the age of majority in your jurisdiction), you represent and warrant that your parent or legal guardian has reviewed and explicitly agreed to these Terms on your behalf before you create an account or make any purchases. The Company strictly prohibits registration by anyone under the age of 16, and we reserve the right to immediately terminate any account found to violate this restriction without liability.

(b) Account Credentials: You are responsible for maintaining the strict confidentiality of your account credentials. You agree to notify us immediately of any unauthorized use of your account. The Company shall not be liable for any loss resulting from unauthorized access due to your failure to secure your credentials, unless such access was directly caused by the Company’s gross negligence or security breach.

(c) Informed Consent: By checking the acceptance box during registration, the Member explicitly acknowledges that he/she has been provided a reasonable period of time to fully review, understand, and accept all clauses within these Terms before entering into this agreement.

4. Posting and Amendment of Terms

  1. The Company posts the contents of these Terms within the Service so that Members can easily review them.
  2. The Company may amend these Terms within the limits permitted by applicable law, including the Act on the Regulation of Terms and Conditions and the Act on Promotion of Information and Communications Network Utilization and Information Protection.
  3. The Company may amend these Terms. We will notify you of any material modifications or changes that are unfavorable to Members at least 30 days before the effective date via an in-service announcement or direct communication. For minor, non-material changes, notice will be provided at least 7 days in advance.

5. User-Generated Content

(a) Ownership: You retain ownership of any data, text, birth information, or inputs you submit, upload, or process through the Service (“User Content”).

(b) Limited License: By submitting User Content, you grant the Company a worldwide, non-exclusive, royalty-free, sub-licensable license to use, transmit, and display your User Content solely to the extent necessary to provide, maintain, optimize, and improve the Service, including transmitting inputs to external AI model providers (e.g., OpenAI, Google) to generate your fortune-telling results. This license terminates when you delete your User Content or close your account.

(c) Data Protection: For the avoidance of doubt, the Company does not sell your User Content to third parties. All processing of personal data within your User Content is strictly governed by our Privacy Policy. You represent and warrant that you have the necessary rights to submit such content to our AI Tools.

6. Prohibited Activities

You agree not to engage in any of the following: 1. Violating any applicable laws or regulations. 2. Registering false information at signup or when updating your account. 3. Impersonating another person or using another person’s information. 4. Altering content posted by the Company. 5. Transmitting or posting content that the Company has not authorized (including unsolicited computer programs). 6. Infringing upon the intellectual property rights of others. 7. Distributing spam, viruses, or harmful code. 8. Attempting to reverse engineer or hack the Service. 9. Harassing, abusing, or harming another person, or damaging the reputation of the Company or third parties. 10. Posting obscene, violent, or otherwise socially objectionable material.

We reserve the right to terminate or suspend your access upon prior notice, unless an immediate suspension is required due to legal mandates, security breaches, or clear harm to third parties.

7. Intellectual Property

The Service and its original content (excluding User Content), features, and functionality are and will remain the exclusive property of Bangguseok Company and its licensors. Our trademarks and trade dress may not be used in connection with any product or service without the prior written consent of the Company.

8. Disclaimer of Warranties

THE SERVICE IS PROVIDED ON AN “AS IS” AND “AS AVAILABLE” BASIS. TO THE FULLEST EXTENT PERMITTED BY LAW, THE COMPANY DISCLAIMS ALL WARRANTIES, WHETHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.

Saju and fortune interpretations produced by AI Tools are provided strictly for entertainment purposes only. The Company does not warrant the accuracy, completeness, or any specific outcome of such interpretations.

Nothing in this section limits any rights granted to you by mandatory consumer-protection laws of the Republic of Korea or your country of residence.

Automated Processing Note**. The AI Tools provide automated novelty and entertainment responses based strictly on member inputs. These tools do not perform automated decision-making or profiling that carries legal weight, financial consequence, or significant personal impact. For avoidance of doubt, AI outputs do not constitute professional financial, medical, legal, or psychological advice. Never make life-altering decisions based on the automated outputs of this app.** Depending on your country of residence, you may possess statutory rights under local data protection laws to request information regarding how your data is processed. You bear the sole responsibility for determining the applicability of such local rights, and any inquiries must be submitted to our support team with verified proof of residency.

9. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, IN NO EVENT SHALL THE COMPANY BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR ANY LOSS OF PROFITS OR REVENUES.

OUR TOTAL LIABILITY FOR ANY CLAIM ARISING OUT OF OR RELATING TO THESE TERMS OR THE SERVICE SHALL NOT EXCEED THE AMOUNT YOU PAID US, IF ANY, IN THE PAST SIX MONTHS. HOWEVER, THIS LIABILITY CAP DOES NOT APPLY IN CASES OF THE COMPANY’S WILLFUL MISCONDUCT OR GROSS NEGLIGENCE.

Nothing in this section limits any rights granted to you by mandatory consumer-protection laws of the Republic of Korea or your country of residence.

10. Governing Law & Jurisdiction

These Terms shall be governed by and construed in accordance with the laws of the Republic of Korea, without regard to its conflict of law provisions.

Any dispute arising out of or in connection with these Terms shall be submitted to the exclusive jurisdiction of the Seoul Central District Court in the Republic of Korea.

Consumer Protection Note: You may have additional rights under laws of your country of residence. Nothing in these Terms shall affect your statutory rights as a consumer to rely on such local laws.

11. Controlling Language

These Terms are provided in Korean and English. In the event of any discrepancy or inconsistency between the two versions, the English version shall prevail.

12. Jurisdiction-Specific Provisions

If you reside in or access the Service from any of the following jurisdictions, the respective local provisions below apply to you and shall override any conflicting terms in the main body of these Terms.

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UNITED STATES OF AMERICA

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(a) MANDATORY BINDING ARBITRATION: YOU AND THE COMPANY AGREE TO RESOLVE ANY DISPUTES THROUGH BINDING AND INDIVIDUAL ARBITRATION INSTEAD OF IN A COURT OF GENERAL JURISDICTION. YOU AGREE TO WAIVE THE RIGHT TO A TRIAL BY JURY. Arbitration will be administered by the American Arbitration Association (AAA) under its Consumer Arbitration Rules.

(b) CLASS ACTION WAIVER: YOU AND THE COMPANY AGREE THAT EACH MAY BRING CLAIMS AGAINST THE OTHER ONLY IN YOUR OR ITS INDIVIDUAL CAPACITY, AND NOT AS A PLAINTIFF OR CLASS MEMBER IN ANY PURPORTED CLASS, REPRESENTATIVE, OR PRIVATE ATTORNEY GENERAL PROCEEDING. The arbitrator may not consolidate more than one person’s claims.

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JAPAN

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(a) Exclusion of Anti-Social Forces (反社会的勢力の排除): You represent and warrant that you are not, and have never been, a member of an organized crime group (B暴力団), a corporate racketeer (総会屋), or any other anti-social forces (反社会的勢力), and that you do not utilize these forces. Any breach of this section shall entitle the Company to terminate your account immediately without prior notice or liability.

(b) Consumer Contract Act Compliance: Section 9 (Limitation of Liability) of these Terms shall not apply to limit the Company’s liability for damages caused to a Member due to the Company’s intentional misconduct or gross negligence, in accordance with the Consumer Contract Act of Japan.

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TAIWAN & PHILIPPINES

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(a) Virtual Currency & Consumer Protection: If you purchase virtual items, coins, or premium fortune-telling tickets within the App, you are entitled to statutory cooling-off and refund periods provided under local consumer protection rules (including Taiwan’s Consumer Protection Act), provided that the purchased digital service or AI generation has not yet been initiated, consumed, or delivered.

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THAILAND

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(a) Compliance with Digital Content and Criminal Laws: In addition to the restrictions in Section 6, you are strictly prohibited from using the Service or AI Tools to submit, generate, or distribute any content that violates the Thai Criminal Code, including Section 112 (lèse-majesté), or the Computer Crimes Act B.E. 2550. Any violation will result in the immediate termination of your account without prior notice and may be reported to law enforcement.

(b) Digital Platform Services Disclosures: In accordance with the Royal Decree on Digital Platform Services B.E. 2565 and its notifications, the AI Tools utilize automated language modeling algorithms to process user input (such as birth data) to provide entertainment outputs based on predefined probabilistic parameters. If the Company issues material amendments to these Terms that are unfavorable to you, we will notify you at least 15 days before the effective date. You maintain the right to terminate your account and cancel the Service within this 15-day notice period.

(c) Unfair Contract Terms Act Compliance: The disclaimers in Section 8 (Disclaimer of Warranties) and the liability caps in Section 9 (Limitation of Liability) shall apply to the maximum extent permitted by the Unfair Contract Terms Act B.E. 2540 of Thailand. If any provision of Section 8 or Section 9 is found by a Thai court to be unenforceable for unfairly limiting the Company's liability, such provision shall be modified to the minimum extent necessary to comply with the law, and the remaining provisions shall continue in full force and effect.

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VIETNAM

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(a) Cyber Security Compliance: To the extent required by Vietnam’s Law on Cybersecurity (No. 24/2018/QH14), any personal data or logs generated by your account use will be processed, stored, and protected in compliance with local cybersecurity and server data localization laws applicable to foreign service providers.

13. Contact Us

If you have any questions about these Terms, please contact us at: