Miao Zi Tsukumoto (Riona Hazuki) is a girl who grew up in a healthy family. Her parents love her very much. The only fly in the ointment is that she has an overweight figure. Compared with friends of the same age, Miao Zi's weight is several times higher than others. So she is afraid to show her love for the boy she likes, and inferiority makes her life more and more heavy.

One day, my father brought a young girl, Chennai Kurata (Kanno Miho), who is said to be her distant relative, to the house, and the family warmly entertained Chennai to stay. As time went on, Chennai slowly took off her disguise. Therefore, her mother began to doubt Xue Nai's life experience and was harmed by sand during the investigation. Sad Miao Zi tried to lie on the tracks, but was saved by the holy doctor. After a year of hellish weight loss, she returned to people with a new identity. ...