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Cash and Cash Equivalents (Tables)
 12 Months Ended
Dec. 31, 2022
Cash and cash equivalents [abstract]  
Schedule of Cash and Cash Equivalents Cash and cash equivalents as of December 31, 2022 and 2021 consist of the follows:
December 31,
2022		December 31,
2021
(In millions of Korean won)
Deposits in banks169,877 99,105 
Total
₩169,877 ₩99,105