Ririko, a mother who got married to Natsumi, a daughter who had been raised by a single woman, got rid of her shoulders, and finally started her life as a woman again. However, one day, Natsumi calls her and asks her about her disagreement with her husband, Kenji. Recently, Riko is worried about Natsumi who can not afford to accept Kenji who is entrusted with a big job and is stressed, and decides to stay at the daughter's couple's house for several days. However, Kenji is gradually attracted to the motherhood of Ririko, who has the delicacy and care that Natsumi does not have.