Xie Linyuan, who is allergic to women, accidentally gets a marriage certificate with Gu Nanqiao due to pressure to marry. After waking up, they don't remember each other's faces. A year later, Xie Linyuan returns and meets Gu Nanqiao again. He asks her to be his contract girlfriend to resist the marriage. During their time together, the two develop feelings for each other, but they both dislike their spouses. It is not until they meet again under their mothers' arrangement that they realize that the other is their legal partner.