One evening, a fight breaks out on the way to the West of the village. The fight is between Sunpanghu and shengzi, and panghu wants to hit Sun with his fist, but s/he is afraid of the strong. One day, he sees a copper coin lying on the road, and he finds an old man lying there, but he is not aware of the coin. The old man is drunk, and when he asks about the coin, the old man tells him that it is probably a dead person's coin. In old times, people used to stuff the mouths of the dead with a coin to suppress their final breath of resentment. In this case, the coin was probably a suppression coin, which was a coin that was only given to the dead after they had pasted yellow paper to cover up the fact that they had buried the dead. . In the middle of the night, panghum's parents are asleep, and they don't notice that their son is leaving the house with the copper coin in his mouth. After that, he looks empty and dull, and for two hours he is controlled by demons. When he wakes up, he says that it was him who hit him, and that he must teach him a lesson today. He says that he is no opponent to Sun, but that he would not be easily caught by him.