Wu Yi, a former Taekwondo practitioner, is decidedly down on her luck. It is the seventh anniversary of her wedding, but instead of celebrating, she’s in the doldrums after she finds him cheating on her with another woman. She applies for a divorce, but when the case comes to court, things get worse: Her now ex-husband is awarded all of their assets and the custody of their child. She resolves to appeal the court’s decision and win back custody of the child. But there’s one big problem – she has no money. So she decides to look for a job. Fortunately, she has her martial arts training to fall back on. She manages to land a job as a bodyguard at a security firm. But her first assignment is as tough as they come. She has to protect a fabulously rich and handsome but ruthless man nicknamed Marquis around the clock. He isn’t short on enemies, meaning danger awaits at almost every turn. She will have to put her body on the line if she is to keep Marquis safe. But it turns out that even if he does has a lot of personality quirks, Marquis has a softer side, too. And as the two start to develop a close bond, Wu Yi discovers that he may even help her succeed in her quest to reunite with her child!