The female protagonist Shen Qingyuan, who is a senior in high school, received a call from the hospital late at night. Her twin brother Shen Yan was seriously injured in a car accident and had to take a three-month leave of absence from school. Once she leaves school, she will lose her full scholarship to Mingde Boys' School. Her family is too poor to afford the high tuition. In order to keep her scholarship and her brother's studies, the heroine decided to disguise herself as a man, cut her hair short, learn a male voice, memorize her brother's social and network map, and replace her brother in the all-boys Mingde Private School.
