Lu Ruoxing’s life takes a tragic turn when her mother leaves her alone in the car to buy a cake. At that moment, Su Yue is kidnapped by human traffickers. In a desperate bid to protect her, Ruoxing hides Su Yue inside the car, but Su Yue, in panic, leaves her behind and is taken. Su Yue is later adopted by the Lu family and renamed Lu Xinghui. The two girls’ fates are now intertwined, with their lives forever changed by that one fateful moment. As they grow up, each must face the consequences of the other’s choices, leading to a dramatic clash of destinies.