Five years ago, Yu Shuyun was betrayed by her stepsister and fiancé, spent a drunken night with Li Huaiyu, and became pregnant. Forced to flee abroad, she gave birth to her son, An'an. Now back to seek revenge and uncover her mother’s murder, she reunites with Li Huaiyu, who has lost his memory due to an injury. Claiming he’s a nanny, Shuyun keeps him close, but as they grow closer, Huaiyu regains his memory and secretly investigates An'an’s parentage. Meanwhile, Shuyun discovers her mother’s death is tied to a deeper conspiracy involving Huaiyu’s mother, who was also murdered. Their shared enemies are revealed, and after joining forces for revenge, Huaiyu confesses his love and proposes.
