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Financial Risk Management (Tables)
 12 Months Ended
Dec. 31, 2022
Disclosure of detailed information about financial instruments [abstract]  
Schedule of Company's Debt to Equity Ratio The debt ratios as of December 31, 2022 and 2021 are as follows:
20222021
(In millions of Korean won)
Total liabilities₩113,914 ₩80,685 
Total equity330,180 246,841 
Debt ratio35 %33 %
Schedule of Financial Assets and Liabilities Exposed in Foreign Currency Risk The Group’s financial assets and liabilities are exposed to foreign currency risk as of December 31, 2022 and 2021 are as follows:
December 31, 2022
Assets in foreign currencyLiabilities in foreign currencyAssets in Korean WonLiabilities in Korean Won
(Individual amounts in each foreign currency)(In millions of Korean won)
USD50,865,141 8,528,692 ₩64,351 ₩10,832 
JPY517,431,793 55,296,530 4,932 527 
EUR25,839 37,607 35 51 
IDR12,955,000 703,608,946 1 57 
THB28,510 7,379 1 — 
VND9,270,000 3,243,600 — — 
Total₩69,320 ₩11,467 
December 31, 2021
Assets in foreign currencyLiabilities in foreign currencyAssets in Korean WonLiabilities in Korean Won
(Individual amounts in each foreign currency)(In millions of Korean won)
USD28,112,919 13,921,628 ₩33,328 ₩16,504 
JPY690,658,516 88,019,006 7,115 907 
EUR356,541 41,564 479 56 
IDR12,955,000 3,103,944 1 — 
THB28,510 7,379 1 — 
TWD9,521,305 — 408 — 
VND9,270,000 3,243,600 — — 
Total₩41,332 ₩17,467 
Summary of Impact of Fluctuation in Foreign Currency Exchange Rates on Group's Monetary Assets and Liabilities The impact of a 10% fluctuation in foreign currency exchange rates on the Group’s monetary assets and liabilities as of December 31, 2022 and 2021 are as follows:
December 31, 2022December 31, 2021
Increased by 10%Decreased by 10%Increased by 10%Decreased by 10%
(In millions of Korean won)
USD₩5,352 ₩(5,352)₩1,682 ₩(1,682)
JPY440 (440)621 (621)
Others(7)7 83 (83)
Total₩5,785 ₩(5,785)₩2,386 ₩(2,386)
Summary of Maximum Exposure to Credit Risk
The carrying amount of a financial asset represents the maximum exposure to credit risk. The maximum exposure to credit risk of the Group as of December 31, 2022 and 2021 are as follows.
December 31,
2022		December 31,
2021
(In millions of Korean won)
Cash and cash equivalents₩169,877 ₩99,105 
Short-term financial instruments167,000 148,000 
Accounts receivable, net77,257 52,615 
Other receivables, net12 6 
Other current financial assets3,370 598 
Other non-current financial assets2,176 3,019 
Total₩419,692 ₩303,343 
Summary of Financial Liabilities by Maturity The following table summarizes the financial liabilities of the Group by maturity according to the remaining period from the end of the reporting period to the contractual maturity date.
December 31, 2022
Carrying
value		Less than
3 months		3 months ~
1 year		1~2 years2~3 years3~5 yearsTotal
(In millions of Korean won)
Accounts payable₩70,544 ₩69,803 ₩367 ₩374 ₩— ₩— ₩70,544 
Accrued expense429 429 — — — — 429 
Other liabilities (*)5,963 1,016 2,023 2,476 617 — 6,132 
Total₩76,936 ₩71,248 ₩2,390 ₩2,850 ₩617 ₩— ₩77,105 
(*)Other liabilities as at December 31, 2022 consist of lease liabilities.
December 31, 2021
Carrying
value		Less than
3 months		3 months ~
1 year		1~2 years2~3 years3~5 yearsTotal
(In millions of Korean won)
Accounts payable₩37,593 ₩28,907 ₩7,958 ₩728 ₩— ₩— ₩37,593 
Accrued expense49 49 — — — — 49 
Other liabilities (*)8,730 988 2,715 2,602 2,135 461 8,901 
Total₩46,372 ₩29,944 ₩10,673 ₩3,330 ₩2,135 ₩461 ₩46,543 
(*)Other liabilities as at December 31, 2021 consist of lease liabilities.