Su Peiyin, the eldest daughter of an aristocratic family, was forced to disguise herself as a man and enter Jixia Academy due to a family incident. However, she accidentally formed a "liangzi" with elite student Xie Yongquan. With her sharp tongue and cute personality, she breaks the rigid atmosphere of the school with her straightforward personality, and gradually attracts Xie Yongquan, who is cold on the surface but strategizing in reality. The two went from "troubling each other" to "secretly in love". During this period, they were mixed with the conspiracy of the remnants of the previous dynasty, the test of the family crisis, and even the twists and turns of Su Peiyin faking his death to break the situation. In the mutual help of sisters and self-growth, she not only conquered the "wolf-dog academic", but also turned against the wind to solve the family's dilemma, and finally joined hands with Xie Yongquan to plan the future and realize a two-way journey.
