Ayaka and her son Satoshi were left behind due to the sudden disappearance of her husband, a businessman. As soon as Ayaka quit school and started a part-time job for her mother, Ayaka made her husband who doesn't know whether he was alive or dead. An indecent delusion with her son runs through her mother's head. Ayaka realizes that if things continue like this, she will end up in a bad relationship with her real son. The son who knew the true nature of such a filthy mother ….
