Office worker Xu Ciyin is publicly called "Wife" by an amnesiac man named Ah Jing following a rear-end collision. Wanting to shake him off, she instead crosses paths with Ah Jing again in the same apartment complex after moving. Learning that Ah Jing works silently and has always been waiting for her to pick him up and take him home, Xu Ciyin softens her heart and takes him in to live together. Ah Jing is innocent, obstinate, and prone to crying, yet sincerely attached to her, and Xu Ciyin gradually falls in love. It is not until the Pei family comes looking that she learns Ah Jing is actually Pei family young master Pei Jing, and that there are hidden circumstances behind their encounter. The memory-restored Pei Jing makes amends through his actions and pursues Xu Ciyin all over again. The story focuses on trust, responsibility, and emotional growth.