The reason for winning is worthless.
economic crisis
In the 1960s, a serious economic crisis occurred in South Korea. At that time, in order to revitalize the economy as soon as possible and recover from the post-war predicament, South Korea devalued its currency sharply, even reaching 100%. In the following decades, its currency depreciated to varying degrees. Finally, this situation appeared, but it did not have much impact on the circulation of money.