Sisters Lin Xia and Lin Qiu have been assigned living expenses by their parents since childhood through sports competitions: the winner gets to eat, the loser gets beaten, while their physical conditions are forced to be kept secret from the outside world. After being admitted to the same university, both of them believed the other was taking the living expenses, resenting each other until they accidentally reconciled their accounts while competing to carry cement at a construction site, discovering that their parents had been fabricating transfer screenshots and provoking them from both sides. Turning from rivals into teammates, the sisters collected evidence, publicly exposed their parents at a family education experience exchange meeting, and ultimately won through a lawsuit, completely breaking free from their original family. After being released from prison, the parents continued to exploit their daughters, and after being rejected by the sisters, they went bankrupt.