Makie died from her husband and raised her son, Tomoki, by herself. He witnessed Tomoki's growth to great extent and remarried Kenichi. He doted on Tomoki and was a mother for a long time, but his body regains the pleasure of a woman through persistent sex with his new husband. However, Tomoki secretly peers at Makihide's appearance... And Tomoki, who had been aware of Makihide not only as a mother, but as a woman, could no longer contain her strong urge to "have sex with her mother."