Hold you with this left arm that crushes the monster. The main character, Nuo folk religion, who has transferred to a town of history and tourism. When he was young, half of his soul was eaten by the existence of "Koujin with fangs", so he is associated with a special monster called "Kotowari" that nestles in the darkness of the human soul that was involved with him. It became a constitution. On the first day of transfer, Miyo is fascinated by a female student, Yuki Yuigahama. This is because he was a benefactor, Kazamidori, who died from "reason" and lost his life. One day, Miyo encounters "Ri" with Yuki in the city. During the battle, Yuki's hand, which was about to be attacked by a sudden attack, reveals the same weapon as the former Kazamidori. "Kazamidori" and "Yuki Yuigahama". He visits the Shinto house of Yuki to find out the connection between the two, but all he knows is that he has something to do with her aunt. After the battle, they are attracted to each other, and the two overlap their skin. Yuki has a vibrant thing in her mouth. Yuki's big bouncy chest is rubbed with his left hand. The faces of the two are sometimes sad and sometimes ecstatic. The relationship between Kazamidori and Yuki will be announced soon. Attracted by a cruel fate, the two are now embarking on their final battle.