Becoming a Fat Man is an inspirational youth healing drama jointly produced by Blueport Film Co., Ltd. and Mango TV, directed by Xu Peishan and starring Stephy. Adapted from Zhang Haochen's popular novel "I'm only one person in the world", the play tells the romantic love story of a fat girl, Zhen Yuanyuan, who turned into a supermodel star Eva after losing weight successfully and reunited with the male god Ruan Dongsheng.

Content abstract: Supermodel star Eva (Zhen Yuanyuan), with a devil figure, is a very successful model in the eyes of the outside world. However, what others don't know is that her constitution is very special, and she can't eat more than 1000 calories a day, because she lost too much weight before and got balloon sickness. As long as it exceeds 1000 calories, she will get fat.

But then EVA met Ruan Dongsheng, a campus male god who once had a crush on her, and found that she would not get fat if she ate his cooking. Eva began to rely on Ruan Dongsheng for food and figure.

But what Eva didn't know was that Ruan Dongsheng always liked her (chubby Zhen Yuanyuan), and finally they went through hardships. In this process, because of those experiences, they gradually developed feelings and began a sweet and youthful love.