Chu Lingtian descends the mountain to break off his engagement but unexpectedly saves his fiancée, Su Qingying, and becomes her personal bodyguard in the blink of an eye. Usually cheeky and always talking about bonuses, he can nevertheless resolve crises with his medical skills and martial arts when it matters most. Faced with a family power struggle and business troubles, the two move from a contractual partnership toward mutual trust. As the two halves of a jade pendant come together, the mystery surrounding his origins fifteen years ago begins to surface, and Chu Lingtian's identity as a secret heir is gradually revealed. This time, he will join hands with Su Qingying to uncover the old case, protect the family business, and ensure that the mastermind's schemes have nowhere to hide.