After becoming pregnant, the female protagonist's life is disrupted by the sudden intrusion of Xiao Wang. This woman, claiming to be the mother-in-law, forcibly sleeps between her and her fiancé, Xiao Zhang. Innocent and slow to realize the danger, she eventually stumbles upon the truth that the woman is her fiancé's mistress, and meets a tragic end at their hands. Restarting her life, the female protagonist is no longer naive. She outwardly agrees to live together, quietly collects evidence, and meticulously prepares for a birthday banquet. Exposing Xiao Wang's true identity in front of everyone, she fights back fiercely, ruining the reputations of the scumbag and the hypocritical woman publicly.
