Xia Xingyan, in order to register her daughter, faces provocation from her boyfriend's mistress when they go to get their marriage certificate. Zhan Yechen, needing a temporary wife to refuse a family-arranged marriage, enters into a fake marriage with Xia Xingyan. Xia Xingyan later discovers her daughter isn't fathered by her boyfriend, and Zhan Yechen helps her fight back. Xia Xingyan's best friend, Shen Rui, pretends to be Zhan Yechen's first love, causing a misunderstanding. As the story unfolds, Zhan Yechen gradually falls in love with Xia Xingyan and starts to suspect that the daughter might be his own.
