After years apart, Xu Mu reunites with her high school classmate, Xie Shi, who has now become a cold and scheming project director. The two find themselves caught in a game of cat-and-mouse and hide-and-seek.
Xu Mu, a successful planner at Shangxin Advertising, faces pressure to marry after her sixth failed blind date, but refuses to settle. During a client meeting, she reunites with her high school classmate, Xie Shi, now a cold and calculating director. A drunken misunderstanding leads to Xie Shi being publicly declared as Xu Mu's boyfriend on social media, forcing them to pretend to be a couple and live together. As they grow closer, hidden feelings from Xie Shi’s past begin to surface, complicating their arrangement.