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Regarding your inquiry, we would like to provide the following information.

In the Republic of Korea, the principal terms of a lease agreement, such as the security deposit, rent, and lease period, are determined by mutual agreement between the parties. Matters concerning the modification or termination of a lease agreement may vary depending on the applicable laws and the terms of the contract.

Based on the information you have provided, we understand that you have already entered into a lease agreement, paid the agreed security deposit and the first month's rent, and moved into the property. Whether a landlord may request an additional security deposit after the lease agreement has been concluded, or require a tenant to vacate the property during the lease term because the tenant refuses such a request, may depend on the terms of the lease agreement and the specific circumstances of the case.

For more detailed information on lease agreements, termination of lease agreements, and tenants' rights, please refer to the following Easy Law for Foreigners content: "Housing Lease."

https://www.easylaw.go.kr/CSM/SubCnpclsCmd.laf?csmSeq=2495&ccfNo=1&cciNo=1&cnpClsNo=1

More detailed information in Korean is also available in Korean Easy Law content: "Housing Lease."

https://www.easylaw.go.kr/CSP/CnpClsMain.laf?popMenu=ov&csmSeq=629&ccfNo=1&cciNo=2&cnpClsNo=1&search_put=

If you require more specific advice regarding the laws applicable to your lease agreement or the legal effect of your contract, we recommend that you bring your lease agreement and consult the Korea Legal Aid Corporation or a housing-related counseling service operated by your local government.

Korea Legal Aid Corporation
Website: https://www.klac.or.kr/lang/?language=en
Telephone: 132

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