Gu Zhengfan, CEO of the Gu Group, makes a glorious return to Jiangcheng to search for Lin Xiaoxiao, his childhood sweetheart from ten years ago. In order to seize a position by his side, Wu Qingqing conceals the truth from Gu Zhengfan, falsely claiming to be the girl from back then. When Gu Zhengfan discovers the truth, he and Lin Xiaoxiao along with her dog suffer a car accident, accidentally swapping souls and sparking numerous comedic moments. At the same time, Wu Qingqing teams up with Vice President Qian to frame Lin Xiaoxiao. Placed in a desperate situation, Lin Xiaoxiao relies on her wits not only to defuse the crisis, but also to unearth the truth about her parents' wrongful case, exposing a murder plot from years ago. The struggle between the three intensifies as love and hate, loyalty and betrayal intertwine. Can Gu Zhengfan protect Lin Xiaoxiao, and can they restore their original identities?