Introduction: The male protagonist was born in a wealthy family. On the day of his birth, there was a vision in the sky, with thunder and lightning, indicating that something was going to happen. The male protagonist turned 100 days old, and his father held a banquet for guests. A monk who begged for alms passed by. The father was hospitable and invited the monk to the table. During the period, the male protagonist's wet nurse held him in his arms and showed him to everyone. When the alms-gathering monk saw the male protagonist, he was surprised and said that this son had a fate with the Buddha. After several years, the male protagonist grew up. When he went to the temple with his mother to fulfill his vows, he did not want to go home and wanted to stay in the temple to practice. His mother had no choice but to entrust him to the abbot. The male protagonist then chanted sutras and meditated every day in the temple, working hard every day. After several years, the male protagonist achieved considerable attainments in Buddhism and could be said to have become a Buddha. Not long ago, a servant came to the temple to find the male protagonist and told him that his mother had been killed. The male protagonist was very sad. Although he had become a Buddha in the temple, he cared about his mother very much. When I returned home, I saw that my mother had been killed by a squire next door, and I was extremely sad and angry. The murderous intention aroused, and after careful planning, the male protagonist killed more than 30 members of the squire's family, and transformed from a Buddha into a demon. In fact, the male protagonist knew very well that the Buddha and the demon are of one mind, and the Buddha is the demon, and the demon is the Buddha.