*Tomoe's life almost prematurely ended 500 years ago, when he was taken by surprise in a brothel by the god of war, Ikusagami. The gods decided that the bloody riot of Tomoe and Akura-Ou in the world of people and yokai should end, and for this purpose Ikusagami borrowed a special sacred sword and went hunting a white fox.

As a result of the battle, Tomoe's sword was broken by a superior weapon, and he was mortally wounded. Tomoe fled to the countryside only to collapse by the river, dying, and a group of armed men followed his trail. He made the last desperate effort and turned into a child to deceive his pursuers. However, it was close to failure, if not for the timely appearance of a beautiful and kind young girl.

The specific events that led to Mikage Tomoe's connection are related to his equally mysterious romantic story. A long time ago, he fell deeply in love with a human girl and made a contract with a fallen god to live his human life, to die with his beloved. Something went wrong because he didn't become human, but he was still dying when Mikage found him wandering in the woods. Thanks to Mikage, who sealed his memories, Tomoe did not remember anything from this area of his life before meeting a one girl.*