42-year-old boxing champion Ma Changlong and 19-year-old Qiu Minghao accidentally fall from a building and swap souls. In the identity of a student, Ma Changlong unexpectedly finds his long-lost beloved Dai Yao and biological daughter Ma Ke, and becomes Ma Ke's desk mate. To make up for his shortcomings, Ma Changlong transforms into a "pamper-daughter maniac" in the capacity of a desk mate, but is misunderstood by Ma Ke as a confession of love. On the other side, Qiu Minghao is forced to deal with the boxing champion's marriage crisis and commercial conspiracy. The two join hands in their misplaced lives to fight against the villain Liu Yan's revenge plan, resolve conflicts among classmates and family disputes, and finally switch back their bodies, gaining family affection and growth respectively.