Ke Mintang accidentally enters a book and becomes a supporting female character with only a brief appearance. A system assigns her a task: to act as Rong She's partner. Once the original female lead appears, she will receive a huge reward and return to her original life. In the book, Rong She is supposed to be cold and indifferent toward the supporting female character, but in reality, he is exceptionally considerate and close to her. While dealing with He Yayin, who adores Rong She, and Zhang Xin, who waits for a chance to get close, Ke Mintang deliberately keeps her distance from Rong She, focused solely on completing the task and leaving. Rong She has long noticed that she is hiding something. He takes the initiative to get closer and treats her with sincerity. As they pull and tangle, a contrasting romance unfolds within the wealthy family.