Gu Yunshuang, heartbroken by Wang Ze's betrayal, marries her bodyguard, Fu Moqian, in a fake marriage. She has Fu pretend to be Mr. Long. Wang Ze and Sun Xiaoxiao refuse to believe their relationship and repeatedly try to expose Fu Moqian’s true identity. However, Fu cleverly deflects their attempts. Initially, Gu Yunshuang believes that Fu Moqian’s abilities are just part of his job, but she later discovers that he is actually a powerful CEO of Longchuan Group. As their relationship deepens, they embark on a sweet and complex love story.