Article 1 (Purpose)

These Terms of Service (the "Terms") govern the terms and conditions for the use of the Nubint AI service (the "Service") operated by BeyondCity Inc. (the "Company").

Article 2 (Definitions)

The terms used in these Terms are defined as follows:

Service: Refers to the AI-powered research agent service and all related services provided by the Company.
Website: Refers to the internet site https://nubint.ai operated by the Company to provide the Service.
Member: Refers to a person who has agreed to these Terms and entered into a service use agreement with the Company.
Non-member: Refers to a person who uses the Service without registering as a Member.
ID: Refers to the email address or social account set by the Member and approved by the Company for identification and service use.
Content: Refers to all information including text, images, and files generated by Members or provided by the Company within the Service.
Paid Service: Refers to various services and additional services provided by the Company for a fee.
Credits: Refers to virtual payment units used for certain features within the Service.
Quota: Refers to the number of service uses provided according to the subscription plan.

Article 3 (Publication and Amendment of Terms)

The contents of these Terms shall be posted on the Service website or otherwise made available to users.
The Company may amend these Terms within the scope that does not violate applicable laws and regulations.
When the Terms are amended, the Company shall post the changes and effective date on the Service website at least 30 days prior to the effective date. However, for changes that are not disadvantageous to users, notice may be given at least 7 days prior.
If a user does not agree to the amended Terms, the user may discontinue use and withdraw from the Service. Continued use of the Service after the effective date of the amended Terms shall be deemed as consent to the changes.

Article 4 (Membership Registration)

Users may apply for membership by agreeing to these Terms and following the registration procedures established by the Company. Membership is completed upon the Company's approval.
Members must provide truthful and accurate information during registration. The use of false or another person's information may result in service restrictions.
Users under the age of 14 may create an account only with the consent of a parent or legal guardian.

Article 5 (Approval and Restriction of Service Use Applications)

The Company shall approve service use applications unless there are special reasons to the contrary.
The Company may refuse approval or subsequently terminate a service agreement in any of the following cases:
- When the applicant uses a false name or another person's identity
- When false information is provided or required information is not submitted
- When the applicant has previously lost membership due to a violation of these Terms
- When the applicant attempts to lease or resell service use rights
- When other requirements set by the Company are not met

Article 6 (Service Description)

The types of services provided by the Company include:
- AI-powered paper search and prior research analysis
- AI Editor (document autocomplete, AI document editing, AI document chat)
- Research topic recommendations and hypothesis generation/evaluation
- Research methodology recommendations and research gap analysis
- Researcher analysis and citation recommendations
- Survey generation and simulation
- Any other services developed or provided through business partnerships
Specific details and conditions for each service are available on the Service website.

Article 7 (Member Obligations)

Members shall not engage in the following activities:
- Registering false information during registration or information changes
- Unauthorized use of another person's information or payment methods
- Altering information posted by the Company without authorization
- Transmitting or posting information other than that designated by the Company
- Infringing the intellectual property rights of the Company or third parties
- Defaming or interfering with the operations of the Company or third parties
- Using the Service through abnormal methods or causing system overload
- Reverse engineering, decompiling, disassembling, or otherwise modifying the Service through any form of processing
- Granting access rights to third parties by lending, transferring, or otherwise sharing account credentials
- Engaging in activities prohibited by law or these Terms through the Service
Members must comply with applicable laws, these Terms, usage guidelines, and other notices related to the Service.
Members are responsible for managing their IDs, passwords, and payment method information. The Company shall not be liable for any issues arising from a Member's negligent management of such information.

Article 8 (Service Use and Fair Use Policy)

The Service operates 24 hours a day, 365 days a year, unless there are operational or technical reasons to the contrary.
Members must comply with the Company's Fair Use Policy (FUP) and shall not use the Service in abnormal or malicious ways.
The following activities are considered violations of the Fair Use Policy:
- Mass requests using automated means (bots, scrapers, etc.)
- Activities that disrupt normal service operations
- Unauthorized use or reverse engineering of APIs
- Sharing account login credentials with other users
If a Fair Use Policy violation is detected, the Company may block or permanently delete the account without prior notice, and no refunds shall be provided in relation thereto.

Article 9 (Paid Services)

The Company may provide certain services for a fee, and the pricing and payment methods for paid services shall be separately posted on the respective service pages.
Paid service subscriptions are automatically renewed on a monthly or annual basis and shall be renewed under the same conditions unless cancelled before the renewal date. Subscription payments are automatically charged through the Member's registered payment method on a monthly or annual cycle. If the payment date falls on a date that does not exist in a particular month, payment shall be charged on the last day of that month.
The Company may change the pricing of paid services and shall provide at least 30 days' notice. Existing subscribers shall be charged the existing price until the end of their current subscription period.
Credits and quotas are granted according to the subscription plan. Unused credits or quotas do not carry over to the next subscription period.
If a Member upgrades to a higher-tier paid service during an active subscription, the higher-tier service fee shall be charged from the date of the change, and the previously paid fee for the prior service shall be refunded in proportion to the remaining usage period.

Article 10 (Service Changes and Suspension)

The Company may change or suspend part or all of the Service for operational or technical reasons.
The Company shall provide notice through in-service announcements at least 7 days prior to any changes or suspension.
In the event of force majeure such as natural disasters or system failures, the Service may be temporarily suspended without prior notice, with notification provided afterward.

Article 11 (Member Withdrawal and Disqualification)

Members may request withdrawal at any time through in-app settings or by contacting customer support at contact@nubint.ai, and the Company shall process the request within 7 business days from the date of the request.
Upon withdrawal, all access rights and subscription privileges, including any monetary value associated with the account, shall be immediately extinguished and cannot be restored. This also applies to withdrawals caused by account sharing or account misappropriation.
The Company may restrict, suspend, or revoke membership without prior notice in any of the following cases:
- When false information was provided during registration
- When a Member interferes with other users' service use or misappropriates their information
- When a Member engages in activities prohibited by law or these Terms
- When the Fair Use Policy is violated
If the Company imposes sanctions pursuant to this Article due to a Member's violation of these Terms, the Company shall not compensate the Member for any damages arising from the inability to use the Service, and shall not provide any refund or compensation related to the Member's use of paid services.
Upon withdrawal, personal information and usage records shall be retained for the period required by applicable laws and then destroyed.
After withdrawal, previously generated research results and data will no longer be accessible.

Article 12 (Intellectual Property Rights)

All intellectual property rights for content, software, design, trademarks, and other materials included in the Service belong to the Company or authorized rights holders.
Members shall not reproduce, distribute, transmit, publish, broadcast, or otherwise use for commercial purposes any information obtained through the Service, nor allow third parties to do so, without the Company's prior consent.

Article 13 (User-Generated Content)

Ownership of content created by Members through the Service belongs to the Members.
The Company may use Member-generated content for the purposes of providing, improving, and promoting the Service, in a form that does not include personal information.
Due to the nature of the Service, the Company does not guarantee that results created using Service features, or any information exposed during the creation process, do not infringe on the copyrights or other intellectual property rights of third parties. The Member is responsible for any consequences arising from the use of results created through the Service.
Members warrant that any text, images, or other materials they input during the use of the Service do not infringe on the intellectual property rights or other rights of third parties. If any lawsuit, objection, claim, or other dispute arises between a third party and the Member or the Company due to a Member's violation of this provision, the Member shall indemnify the Company, resolve the dispute, and compensate the Company for any damages incurred.
This Article shall remain effective while the Company operates the Service and shall continue to apply even after a Member's withdrawal.

Article 14 (Disclaimer)

The Company shall not be liable for failure to provide the Service due to force majeure, including natural disasters, wars, or telecommunications service interruptions.
The Company shall not be liable for service disruptions caused by the user's own fault.
Due to the nature of AI-based services, research analysis results, recommendations, and other information provided through the Service are offered for reference purposes only. The Company does not guarantee their legality, originality, exclusivity, reliability, accuracy, truthfulness, completeness, usability, or fitness for a particular purpose. All responsibility for any issues arising from the use of AI output lies with the Member, and the Company shall not bear any liability whatsoever.
The Company shall not be liable for damages incurred by Members due to any of the following reasons, except in cases of willful misconduct or negligence by the Company:
- Service unavailability due to maintenance, replacement, inspection, or construction of service equipment
- Service disruptions caused by the Member's own willful misconduct or negligence
- Disclosure of Member information due to the Member's failure to manage account passwords
- Illegal access to servers by third parties, illegal use of servers, or abnormal access interference using programs
- Failure of the Member to achieve expected benefits from using the Service
- Deletion of content or account information by the Member
Any liability for damages attributable to the Company shall be limited to the amount paid by the user for the Service.
If a Member causes damage to the Company by violating these Terms, the Member shall compensate the Company for all damages incurred and shall indemnify the Company against such damages.

Article 15 (Privacy Protection)

The collection, use, and provision of Members' personal information shall be governed by a separate Privacy Policy, which is available on the Service website.

Article 16 (Refund Policy)

Withdrawal of Subscription: A Member who has entered into a purchase agreement for a paid service may withdraw within 7 days from the date of payment, provided that the paid service has not been used at all.
Withdrawal Restrictions: The right of withdrawal shall be limited for services that are not eligible for withdrawal under applicable laws, including the Act on Consumer Protection in Electronic Commerce. If any credits or quotas have been used, a refund for that subscription period is not available.
Discrepancy with Representations: Notwithstanding paragraphs 1 and 2, if the content of the purchased paid service differs from the representations or advertisements, or is performed differently from the terms of the purchase agreement, the Member may withdraw within 3 months from the date the service became available, or within 30 days from the date the Member became aware or could have become aware of such fact.
Verification: When a Member requests withdrawal, the Company shall verify the purchase history through the payment method provider. The Company may also request additional evidence from the Member to verify the legitimacy of the withdrawal, and may suspend the transaction until verification is completed or cancel the transaction if verification is not possible.
How to Request a Refund: To request a refund, please contact us at contact@nubint.ai. Refunds will be processed within 7 business days from the date of request.
Cancellation of Auto-Renewal: To cancel automatic subscription renewal, you may do so through the in-app settings before the renewal date.
Matters regarding refunds of paid service fees due to withdrawal of subscription or mid-term termination not specified in this Article shall be governed by the Company's paid service announcements or separate paid service operation policies.

Article 17 (Refund of Overpayments)

The Company shall refund any overpayment to the Member. However, if the overpayment was caused by the Member's negligence without any willful misconduct or negligence on the part of the Company, the actual costs incurred for the refund shall be borne by the Member within a reasonable scope.
The Company may cancel the payment or issue a refund through the payment method selected by the Member.
The Company may contact the Member to process the refund and may request the provision of necessary information.

Article 18 (Dispute Resolution)

These Terms shall be interpreted in accordance with the laws of the Republic of Korea.
In the event of a dispute between the Company and a user regarding the use of the Service, both parties shall negotiate in good faith for an amicable resolution.
If the dispute cannot be resolved through negotiation, the Seoul Central District Court shall have exclusive jurisdiction.

Supplementary Provisions

These Terms shall be effective from February 1, 2026.

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