Su Wanwan transmigrates into an angsty romance novel as Gu Beichen’s substitute wife. In the book, she grows jealous of the “moonlight in his heart,” Lin Qingxue, makes a scene at every turn, and eventually gets committed to a psychiatric hospital, where she dies a horrible death. After awakening, Su Wanwan decides she’s done playing along. She stops competing for her husband’s affection and just wants to act, build her career, save enough money, and get out. She plays the perfect substitute who “loves her husband but knows her place,” meekly enduring Gu Beichen’s cold treatment and even helping pave the way for his “love story” with his first love. But just as she thinks the plot is about to reach its happy ending and prepares to exit by “dying of a serious illness,” the man who never once looked her in the eye falls to his knees beside her hospital bed, eyes red, desperately begging her not to leave.