Seeing that his sweetheart Pei Yan is about to marry someone else, Fu Huaizhou, who has been secretly in love with her for nine years, sets a trap. He pretended to get close to his fiancé Li Yueting, set a love trap in the name of "good brother", and personally sent the "cheating" video on the eve of the wedding, completely shattering the engagement. Li Yueting jumped over the wall and drugged Pei Yan, but she fell into Fu Huaizhou's hands. He appears at the right time and acts as a savior to coax the unconscious Pei Yan into signing a marriage agreement. This long-planned fight for love finally succeeded.