A love story between a female bodyguard and former martial artist and her rich and handsome but headstrong client. While on an assignment to deliver important documents, Wu Shiyi (Claudia Wang) saves Hou Zhirong (Wang Ce) in a hostage situation. Later, in the face of inexplicable death threats, Hou Zhirong worries for his son Hou Jue’s ‘s (Johnny Huang) safety and decides to hire security. Remembering Wu Shiyi’s calm in the middle of crisis when she saved him, he hand picks her to become Hou Jue’s personal bodyguard. Hou Jue is immediately resistant to the idea of a female bodyguard intruding into his life. H e makes things difficult for Wu Shiyi on purpose, yet she is not the type to easily back down.