Miku (Yui Kawagoe), who is deep in sex, was a virgin without connecting her lover Otake and her body. There was always a undershirt woman beside Miku. In fact, the undershirt woman was Miku's aunt, the spirit behind her, and she who lived in the Edo period was a sexually greedy and free-spirited woman. However, such a personality was so bad that he was not blessed with a man, and he came down to the present life to fulfill his feelings of pleasure through his offspring Miku. One day, Miku, controlled by the aunt of the spirit behind him, invites Otake to the night of his first experience, but when he reaches a good place, he gives up because of the pain. Then, Otake gets angry when he gets angry, and the two become catastrophic ....