Ruan Xingwan accidentally discovers that she is living inside a novel, where she is destined to die of illness and serve as the tragic ex-wife who brings the male and female leads together. To avoid dragging down her husband, Lu Huaiyu, who loves her deeply, she leaves behind a farewell letter and jumps into the river, removing herself from the story for good. Five years later, reborn with a healthy body, she returns to the city and unexpectedly encounters Lu Huaiyu, who has since become a real estate tycoon. After recognizing her, he relentlessly pursues her, and as their buried love and misunderstandings are gradually unraveled, the two finally find their happy ending.