Shen Muyan and Luo Tingchuan met as children in an orphanage—she gave him a protective charm, and he gave her a bracelet. Years later, Shen Muyan, now with no memory of the past, enters a flash marriage with Luo Tingchuan to escape an arranged engagement, unaware he's doing the same. She accidentally recovers the charm and gains mysterious powers. Luo recognizes the bracelet and pretends to be gay to stay close to her. Fake heiress Shen Zhihan takes over Shen Muyan's identity and exposes Luo's identity. Believing he's gay, Shen Muyan tries—awkwardly and unsuccessfully—to change his mind. When she finds out he lied and is straight, she demands a divorce. Shen Zhihan fails to destroy the charm and fakes a pregnancy to force Luo into marriage. Shen Muyan regains her memory and, at the engagement party, teams up with Luo to expose Shen Zhihan and Luo Chengzhou's scheme. In the end, the truth is revealed, and the two are finally reunited.
