Yuka, who loves reading and is interested in literature, was aiming to become a researcher at the National Faculty of Letters. However, now he is married to a husband he met while attending school and is living an ordinary life as a full-time housewife. Yuka's only son, who had a lot of trouble, grew up steadily, and Yuka had time to spare. At that time, my son decided to stay overnight with his friends for a study session. Yuka will also participate in the study session as a teacher, but while looking at the pure eyes of her son's friend, Yuka's abnormal atrocious love awakens.