A pair of bickering rivals finally get married. In the fourth year of their marriage, Qin Xingye loses his memories in a car accident, and his mind becomes stuck in the time before their wedding. Now suffering from memory loss, he is sensitive and insecure, often overcome with jealousy and causing all sorts of hilarious misunderstandings. Ye Zhen finds his clumsy behavior both endearing and amusing, torn between feeling sorry for him and wanting to tease him. Later, Qin Xingye regains his memories but chooses not to reveal that he has remembered everything. As they spend their days together, the two gradually resolve the misunderstandings and emotional knots of their past, allowing years of affection and deep love to slowly come to light.