- 'Company' refers to MATE Labs Co., Ltd.

- 'Service' refers to the 'Kachit' app service provided by the Company on iOS, Android, and web platforms, offering chat and video call features with AI interactive characters.

- 'Platforms' refer to the iOS app, Android app, and website operated by the Company to provide the 'Service' to 'Users'.

- 'User' refers to 'Members' and 'Non-members' who access the 'Platforms' and receive services provided by the 'Platforms' in accordance with these Terms of Use.

- 'Member' refers to a person who has registered as a 'Member' on the 'Platforms' and can continuously use the services provided by the 'Platforms'.

- 'Non-member' refers to a person who uses the services provided by the 'Platforms' without joining the 'Platforms'.

- 'AI Chatbot' refers to an artificial intelligence-based conversation program that powers AI interactive characters for entertainment.

- 'Chat' refers to text-based conversations between 'Users' and 'AI Chatbots'.

- 'Video Call' refers to real-time video-based conversations between 'Users' and 'AI interactive characters'.

- 'Paid Service' refers to premium features or extended usage rights within the 'Service', such as unlimited chats, longer video calls, or access to premium characters, obtained through paid subscription by 'Members'.

- The 'Company' posts the content of these Terms of Use, company name and CEO name, office address (including address for handling consumer complaints), phone number, fax number, email address, business registration number, mail-order business report number, personal information manager, etc., within the 'Service' for easy access by 'Members'. However, the content of the Terms of Use may be made available through a linked screen.

- Before 'Users' agree to the Terms of Use, the 'Company' shall provide a separate linked screen or pop-up screen for 'Users' to confirm important contents stipulated in the Terms of Use.

- The 'Company' may amend these Terms of Use to the extent not violating related laws such as the 'Act on Consumer Protection in Electronic Commerce, etc.', 'Regulation of Terms and Conditions Act', 'Framework Act on Electronic Documents and Transactions', 'Electronic Financial Transactions Act', 'Electronic Signature Act', 'Act on Promotion of Information and Communications Network Utilization and Information Protection, etc.', 'Door-to-Door Sales, etc. Act', 'Consumer Basic Act', etc.

- When amending the Terms of Use, the 'Company' shall specify the application date and reasons for amendment and post them along with the current Terms of Use on the initial screen of the 'Platforms' from 7 days before the application date until the day before the application date. However, when changing the Terms of Use unfavorably for 'Members', it shall be notified with at least 30 days of prior notice period. In this case, the 'Company' shall clearly compare the content before and after the amendment for easy understanding by 'Members'.

- When the 'Company' amends the Terms of Use, the amended Terms of Use shall apply only to contracts concluded after the application date, and the Terms of Use before amendment shall continue to apply to contracts already concluded before that date. However, if a 'Member' who has already concluded a contract wishes to be subject to the amended Terms of Use and expresses this intention to the 'Company' during the notice period of the amended Terms of Use under paragraph 3 and obtains the 'Company's' consent, the amended Terms of Use shall apply.

- Matters not stipulated in these Terms of Use and the interpretation of these Terms of Use shall be governed by the Act on Consumer Protection in Electronic Commerce, etc., the Regulation of Terms and Conditions Act, the consumer protection guidelines in electronic commerce, etc. set by the Fair Trade Commission, and related laws or commercial practices.

- The 'Service' performs the following tasks:

- AI-powered chatbot service

- Voice and video call service with AI interactive characters

- Community service for users

- Premium features and additional content (paid service)

- All services that the 'Company' develops independently or provides to 'Members' through cooperation agreements with other institutions

- The 'Company' may change the content of goods or services to be provided by future contracts in cases such as changes in technical specifications of goods or services. In this case, the changed content of goods or services and the date of provision shall be immediately posted where the current content of goods or services is posted.

- If the 'Company' changes the content of services contracted with 'Members' due to reasons such as changes in technical specifications of goods, etc., it shall immediately notify the reason to the address where the 'Member' can be notified.

- In the case of the preceding paragraph, the 'Company' shall compensate for damages incurred by 'Members'. However, this shall not apply if the 'Company' proves that there was no intention or negligence.

- The 'Company' does not guarantee the quality or usability of the 'Service' if 'Users' wish to use the 'Service' outside the territory of the Republic of Korea.

- If 'Users' wish to use the 'Service' outside the territory of the Republic of Korea, they should decide whether to use it at their own judgment and responsibility, and in particular, the responsibility to comply with local laws in the process of using the 'Service' lies with the 'Users'.

- The 'Company' may temporarily suspend the provision of services due to reasons such as maintenance, replacement, and failure of information communication facilities, interruption of communication, interruption of power supply from KEPCO, intrusion of hackers, computer viruses, and other similar circumstances that cause the 'Company's' system to malfunction without the 'Company's' fault.

- The 'Company' shall compensate for damages incurred by 'Members' or third parties due to temporary suspension of service provision for reasons in paragraph 1. However, this shall not apply if the 'Company' proves that there was no intention or negligence.

- In case the service cannot be provided due to reasons such as business conversion, business abandonment, merger between companies, etc., the 'Company' shall notify 'Members' in the method specified in - and compensate consumers according to the conditions initially presented by the 'Company'. However, if the 'Company' has not notified compensation standards, etc., it shall pay 'Members' in kind or cash corresponding to the currency value used on the 'Service' for 'Members'' mileage or accumulated points, etc.

- 'Members' apply for membership by filling in 'Member' information according to the registration form set by the 'Company' and expressing their intention to agree to these Terms of Use.

- The 'Company' registers as 'Members' those who apply to join as 'Members' as in paragraph 1, unless they fall under any of the following:

- If the applicant has previously lost 'Member' qualification under -paragraph 3, except in cases where 3 years have passed since the loss of 'Member' qualification under -paragraph 3 and the 'Company's' approval for re-registration as a 'Member' has been obtained.

- When there are false, omissions, or errors in the registration content

- When it is determined that registering as a 'Member' is technically significantly hindered for the 'Service'

- The time of conclusion of the 'Member' registration contract is when the 'Company's' acceptance reaches the 'Member'.

- If there are changes to the matters registered at the time of 'Member' registration, 'Members' should notify the 'Company' of the changes through methods such as 'Member' information modification within a reasonable period.

- The time of conclusion of the 'Service' use contract is when the 'Company's' acceptance reaches the 'Member' after applying to join as a 'Member' and agreeing to the collection and use of personal information necessary for service use, provision of personal information to third parties, and entrusting of personal information.

- AI chatbot conversation service

- Voice and video call sessions with AI interactive characters

- Access to content and features

- Community features for interaction with other users

- Extended voice and video call sessions with AI characters

- Access to premium AI characters

- Personalized recommendations

- Additional features as developed and announced by the 'Company'

- If there are changes to the matters stated at the time of application for registration, 'Members' should make modifications on the 'Service' or notify the 'Company' of the changes by email or other methods.

- The 'Company' is not responsible for any disadvantages arising from not notifying the 'Company' of the changes in paragraph 1.

- 'Members' can request withdrawal from the 'Service' at any time, and the 'Company' processes 'Member' withdrawal immediately.

- When 'Member' withdrawal occurs, all posts except those registered within the service scope specified in -paragraph 1 are deleted.

- If 'Members' fall under any of the following reasons, the 'Company' may restrict and suspend 'Member' qualification:

- When false information was registered at the time of application for registration

- When failing to pay debts borne by 'Members' related to the use of the 'Service', such as payment for goods, etc. purchased using the 'Service', by the due date

- When threatening order by interfering with other people's use of the 'Service' or stealing their information

- When performing acts prohibited by law or these Terms of Use or contrary to public order and morals using the 'Service'

- If the same act is repeated 2 or more times or the reason is not corrected within 30 days after the 'Company' restricts or suspends 'Member' qualification, the 'Company' may revoke 'Member' qualification.

- When the 'Company' revokes 'Member' qualification, it cancels 'Member' registration. In this case, it notifies this to the 'Member' and provides an opportunity to explain for at least 30 days before canceling 'Member' registration.

- When the 'Company' notifies 'Members', it can do so to the email address previously agreed upon and designated by 'Members' with the 'Company'.

- In case of notification to unspecified multiple 'Members', the 'Company' can substitute individual notification by posting on the 'Service' bulletin board for more than 1 week. However, for matters that have a significant impact on 'Members'' own transactions, individual notification shall be made.

- When upper and lower sites are connected by methods such as hyperlinks (including text, images, and videos as hyperlink targets), the former is called the linked site and the latter is called the linked-to site.

- The linked site does not bear guarantee responsibility for transactions between users and linked-to sites that independently provide goods, etc., if it clearly states on the initial screen of the linked site or the pop-up screen at the time of connection that it does not bear guarantee responsibility for those transactions.

- Copyright and other intellectual property rights for works written by the 'Company' belong to the 'Company'.

- All rights and responsibilities for posts written by 'Members' belong to the 'Member' who posted them.

- 'Members' shall not use for profit purposes or allow third parties to use information obtained by using the 'Service' that has intellectual property rights belonging to the 'Company' without prior consent of the 'Company' through reproduction, transmission, publication, distribution, broadcasting, or other methods.

- The 'Company' can use, reproduce, modify, publish, and distribute public posts written by 'Members', excluding 'Works'.

- The 'Company' can use only 'Metadata' among 'Works' written by 'Members' in an unedited form.

- The 'Company' may restrict service use through warning, temporary suspension, or contract termination if there is reasonable cause to believe that 'Users' have violated the obligations of these Terms of Use, the 'Company's' operating policies, etc., or interfered with the normal operation of the service. The 'Company' does not separately compensate for 'Users'' damages resulting from such service use restrictions.

- Notwithstanding the provisions of paragraph 1, the 'Company' may immediately terminate the contract in cases of violation of related laws, such as name theft and payment fraud in violation of the Resident Registration Act, provision and operation interference of illegal programs in violation of the Copyright Act and Computer Program Protection Act, illegal communication and hacking in violation of the Act on Promotion of Information and Communications Network Utilization and Information Protection, etc., distribution of malicious programs, excessive access rights, improper receipt of others' personal information, use for illegal acts, etc., or violation of good morals. Accordingly, all benefits acquired through service use are all extinguished, and the 'Company' does not separately compensate for this.

- When the 'Company' restricts 'Members'' service use, it is notified in advance to the email registered in the member information. If there is no objection within 15 business days after notification, usage restriction measures are taken. For 'Non-members', service use restriction is applied to the relevant access path without separate notification.

- 'Members' can object to the 'Company's' usage restriction measures, etc. according to the procedure set by the 'Company'. If the reason for 'Members'' objection is deemed justified, the 'Company' immediately resumes 'Members'' service use. However, even in this case, unless the 'Company's' usage restriction measures were due to the 'Company's' intention or gross negligence, the 'Company' does not separately compensate for damages incurred due to usage restriction.

- The 'Paid Services' usage contract is established when payment for 'Paid Services' is completed after agreeing to these terms on the service operated by the 'Company', or when an individual contract with the 'Company' is completed.

- The usage fees and contract period for 'Paid Services' follow separate regulations specified on the respective service 'Price Page'.

- The 'Company' may change the content of 'Paid Services' (subscription amount, provided service details, etc.) according to operational and technical needs, and will notify paid members in advance as per paragraph 2.

- The usage fees and payment methods for 'Paid Services' follow the content specified on the 'App' 'Price Page' according to the 'Company's' pricing policy.

- The 'Company' may reduce or discount usage fees according to its policies. In this case, the specific targets and application criteria for reduction or discount are determined by the 'Company'.

- The payment method for 'Paid Services' is basically card payment in the name of the 'Member', but if the 'Company' only provides cash deposit payment method, separate inquiry to the 'Company' is required, and the payment method can be selected from monthly payment of monthly usage fees or annual payment of one-year usage fees at the time of contract, as allowed by the 'Company'. All 'Paid Services' are based on prepayment.

- Premium services include extended voice and video call sessions with AI characters, access to premium characters, and advanced features.

- The specific permissions and features available through Premium services follow the content specified on the 'Price Page'.

- Premium members may receive additional benefits as determined by the 'Company'.

- Video call session credits are a type of 'Paid Service' that allows voice and video call sessions with AI characters.

- Additional credits may be purchased as specified on the 'Price Page'.

- Credits have validity periods as specified at the time of purchase.

- Unused credits may be refunded according to the refund policy specified below.

- Refunds for unused paid credits may be requested within their validity period.

- Credits that have already been used are not refundable.

- Unused credits may be refunded with a 10% processing fee.

- If the 'Member' applies for a refund, the 'Company' will refund in the same method as the payment within 5 business days from the date of application.

- Premium content is additional content available to premium subscribers.

- Access to premium content is granted according to the subscription level specified on the 'Price Page'.

- The 'Company' regularly updates and adds new premium content.

- The 'Company' bills usage fees based on the 'Member's' ID, except in separately specified cases.

- The 'Member' can pay usage fees using a credit card company contracted with the 'Company' without signing a separate sales slip.

- If the 'Member' uses 'Paid Services' in violation of these terms or illegally evades usage fees, the 'Company' will charge additional fees including late payment penalties.

- If the 'Member' defaults on usage fees, the 'Company' may provide the 'Member's' information to credit information businesses.

- The 'Member's' 'Paid Services' follow the content specified on the 'Price Page'.

- Each account is limited to use by one individual person only.

- Account sharing is strictly prohibited.

- Members must manage their account information securely and are responsible for any unauthorized use.

- The 'Company' reserves the right to terminate services for violation of these terms.

- The 'Company' shall not engage in acts prohibited by laws and these terms or contrary to public order and morals, and shall do its best to provide the services continuously and stably in accordance with these terms.

- The 'Company' shall have a security system in place to protect 'Members'' personal information (including credit information) so that 'Members' can safely use the 'App' services.

- The 'Company' shall ensure the quality and reliability of the AI character services.

- The 'Company' shall maintain appropriate technical systems to ensure stable video call services and chatbot operations.

- The 'Company' shall not send commercial electronic mail for profit purposes that 'Members' do not want.

- The 'Company' shall provide appropriate customer support for both technical and general inquiries.

- The responsibility for managing ID and password lies with the 'Member'.

- 'Members' must not allow third parties to use their ID and password.

- 'Members' must not share or transfer their account access for chats, calls, or premium features.

- If 'Members' become aware that their ID and password have been stolen or are being used by a third party, they must immediately notify the 'Company' and follow the 'Company's' instructions if any.

- Registering false information when applying or changing information

- Stealing other people's information

- Recording or sharing video call sessions without explicit permission

- Using the services for purposes other than intended

- Engaging in inappropriate behavior during video call sessions

- Harassing or discriminating against other users

- Using automated systems or bots to interact with the chatbot service

- Sharing or distributing premium content

- Damaging the reputation of the 'Company' and other users

- Publicly disclosing or posting obscene or violent messages, images, voices, or other information contrary to public order and morals on the 'App'

- The 'Company' collects the minimum amount of personal information necessary for service provision.

- When the 'Company' collects and uses 'Members'' personal information, it notifies the purpose to the 'Member' and obtains consent.

- The 'Company' may collect additional information necessary for service improvement, with explicit consent from 'Members'.

- Video call sessions may be monitored for quality assurance and safety purposes, with prior notification to users.

- The 'Company' ensures the security of all communication data, including chat logs and video call recordings.

- The 'Company' protects the personal information of all users.

- The 'Company' or a third party that has received personal information shall destroy the personal information without delay when the purpose of collection has been achieved.

- The 'Company' establishes a 'Personal Information Processing Policy' to protect 'Members'' personal information and appoints a personal information protection officer to post and operate it.

- The 'Company' implements appropriate security measures for all real-time communication features, including video calls and chat services.

- When creating content through the 'Service', 'Users' shall not infringe the copyrights or other rights of any third party.

- 'Users' shall not create content that violates applicable laws or is contrary to public order and morals.

- The copyright of content created by a 'User' belongs to that 'User'. However, the 'Company' may use part of such content for the purpose of promoting the 'Service'.

- If a 'User' creates content contrary to public order and morals, the 'Company' may notify the 'User' of the corresponding violation and block the content. Where retention is required by law, the 'Company' may preserve such content in a form blocked from all 'Users', including its author.

- A 'User' may request relief from the 'Company's' measures under the preceding paragraph, and the 'Company' shall reply with the final outcome of its handling of such request within a maximum of 3 months. The 'User' may not appeal against the final outcome.

- In case of overpayment related to 'Paid Services' payment, including premium features and credits, the 'Company' will return the overpayment in the same method as the payment of usage fees. However, if a refund is not possible by the same method, this will be notified in advance.

- If the 'Company' refuses to refund an overpayment requested by a 'Member', it bears the responsibility to prove that the 'Paid Services' fee was legitimately charged.

- The 'Company' is not responsible for personal disputes arising between 'Members' during community interactions.

- The 'Company' is not responsible for technical issues during video calls or chatbot interactions that are beyond our control (internet connectivity issues, device compatibility, etc.).

- The 'Company' is not responsible for inability to provide services due to reasons not attributable to the 'Company', such as national emergency situations, natural disasters, suspension of service by major telecommunication businesses, power supply interruption, or technical malfunctions beyond our control.

- The 'Company' makes no warranties regarding the absolute accuracy of AI-powered chatbot responses.

- The 'Company' is not responsible for service interruptions caused by the 'Member's' technical environment or improper use.

- Users must use the service in the minimum usage environment corresponding to each of the following:

- Mobile Device: iOS 13.0 or higher, Android 8.0 or higher

- Internet Connection: Minimum 5Mbps for video calls

- Device Features: Camera and microphone functionality for video calls

- Storage: Minimum 100MB of free space for app installation

- Memory (RAM): Minimum 2GB recommended for smooth operation

- The 'App' must have necessary permissions granted (camera, microphone, storage)

- The 'Company' establishes and operates a customer support system to handle issues related to the service, technical problems, and billing inquiries.

- For disputes involving the service, the 'Company' will investigate and respond within 48 hours.

- The 'Company' maintains records of all video call sessions for quality assurance and dispute resolution purposes.

- Disputes arising between the 'Company' and 'Members' regarding service use shall be governed by the laws of the Republic of Korea.

- The 'Company' provides clear guidelines for appropriate behavior during voice and video call sessions to prevent disputes.

- In case of serious violations of service terms or inappropriate behavior, the 'Company' reserves the right to suspend or terminate service access.