The story tells of a young man named Irton who finds himself in a different world. He dreamed of getting married to his lover, but instead was drawn into the games of otherworldly forces. The demon Beelzebub and God Haku made a bet in which the original chosen one must defeat and kill the chosen other side, but for this he needs to be recognized. The main character is unaware of his goal, and he, through a series of rigged situations, is led to the finale.