Despite having experienced misfortune since childhood, Takeshi Oomura met an Angel named Elle during a catastrophic circumstance. This encounter revealed that Takeshi's father had cursed him. While Takeshi had the option to pass on the curse to another, he chose to carry it himself to save a girl. This made Elle human, and she remained with Takeshi to shield him from the curse. However, Takeshi wasn't content with this arrangement.