In ancient times, it was said to be "weary of winning". It was a non-circulating currency and was a special copper coin secretly minted in the past dynasties to suppress evil, pray, and curse. Every winning coin has an unfulfilled "wish" sealed on the back - either an obsession, an injustice, or a curse. The money holder must repay the wish for the money, otherwise the money will bite back and take the life of the holder.
