Nana, a wife who married her teacher when she was a student. It was supposed to be a happy married life with her loved one, but she was having an awkward life because she didn't get along with her husband's stepchild, Shinya. That should be it, Shinya was Nana's tutor before and was in love at that time. Shinya feels frustrated with Nana, who keeps a distance as her mother-in-law, and forcibly plays with her plump body. She hopes Shinya can get back on his feet by sacrificing herself, and Nana accepts Shinya's distorted inferiority complex and desires as he wishes...
