Wen Yao's husband Xie Jing unexpectedly suffers from amnesia and proposes a divorce to her. At this moment, the teenage-looking Xie Jing suddenly appears. To protect the two people's relationship, Wen Yao hastily lies that the teenager is the child of her and Xie Jing. The amnesiac Xie Jing temporarily accepts the explanation, but the teenager has a lively and unrestrained temperament, constantly making a scene, and even falls in love with Wen Yao during their time together. At a banquet, the lie is nearly exposed, and Xie Jing does an appraisal, only to find out that the teenager is none of other than his younger self. Numerous misunderstandings and arguments keep happening, and the teenager finally returns to his original timeline. Through this bizarre encounter, the amnesiac Xie Jing clears up all past events, unties the knot in his heart, and re-examines the deep affection between him and Wen Yao.