An unemployed man in the city becomes a demon-slaying hero in the world. He is persistent in love but cannot get the happiness he expects. After a car accident, he discovered that he had a new body and had superhuman physical strength and agility. But is he still himself? Faced with love, hatred, and the temptation of many beauties, where will he go? Travel through wild and dangerous places, fight against monsters, and uncover numerous mysteries. He had a home and could not return, and from then on he wandered between heaven and earth. Although he had many adventures and was finally able to defeat the devil and support justice, his only wealth is loneliness, reason and gratitude.