Wedding planner Sophia is about to get a promotion, but on her birthday, she finds out that her boyfriend of seven years, Daniel, has not only cheated on her with a client, but also stolen her planning proposal and is ready to go abroad with his new lover. To secure the most important wealthy family wedding of her career, Sophia grits her teeth and takes the order, only to be shocked when she meets the groom for the first time—it turns out to be Daniel’s estranged elder brother, the cold and mysterious billionaire Alexander. Worse still, the bride runs away the night before the wedding. To stabilize public opinion and the family’s stock price, Alexander asks Sophia to pretend to be his fiancée for a month. Sophia wants to refuse, but if the order falls through, her career will be ruined, and she will be completely crushed by her ex-boyfriend. During the fake relationship, Sophia endures provocations and humiliations, but Alexander always defends her strongly, making her feel "firmly chosen" for the first time. Just as she gets over her heartbreak, she discovers she is only a tool for Alexander’s family power struggle. Finally, Sophia awakens, launches a brand wedding show, exposes Daniel’s misdeeds, and Alexander confesses his true feelings, leading them to a real relationship.
