"Mio" married her childhood friend "Yuto". However, she liked her husband's childhood friend "Ryota". "Mio" of M temperament was incompatible with her husband of the same M and her body. One day, "Ryota" comes to visit her from the countryside. Her old feelings for her are rekindled and she is cuckolded by her childhood friend. Her husband, who witnessed the scene, is also excited because of his M temperament.
