After discovering her boyfriend’s affair with her best friend, Ye Qianmo drowns her sorrows in alcohol and mistakenly enters Gu Xiuyuan’s room, leading to a one-night stand. The next day, due to her sister Ye Qianwen’s runaway marriage, Ye Qianmo is pressured by her parents to marry Gu Xiuyuan. On the wedding day, she is shocked to discover that her groom is the same man she slept with the night before.