The shinden (temple knights) are held responsible with the duty of fighting demons for the sake of the holy maiden, who's the symbol of the church. The holy maiden, unique to this country, exists to help save people from a mysterious illness that happens around the time of a new moon. Due to this, many people became followers [of the church]. Murray, a shinden, was brought up under the holy maiden's guidance, but, what kind of mysterious living is it if he supports the holy maiden, involuntarily? Even if he knew the church distorted its teachings.....?

Here, the curtain rises to Izayakaku's Sakamaki Yukisato as she gives us a twist to a fantasy world.

The war between the two clans intensifies. Most of the Genji (Minamoto Clan) have fallen, and were taken as captives. Among them was the young Yoritomo, a surviving successor of the Minamoto Clan. Yoritomo was pardoned by the head of the Taira Clan and was exiled to Hirugakojima, a small island in the Izu province. Yoritomo lived a peaceful and contented life in exile and never once thought of taking revenge.

One day, a monk was sent to the same island, supposedly banished for insolence towards the Emperor. Incidentally, this ill-mannered monk called Mongaku is Yoritomo's acquaintance. Mongaku meets Yoritomo and tries to convince him that the time has come to take revenge on the Taira. However, Yoritomo shuns Mongaku’s words….