Reporter Luna once went undercover and took down gang leader Kai. After returning to the city, she discovers Kai has faked his death and returned as a wealthy heir. Aware of her undercover identity, Kai forces her into a deal. They were childhood sweethearts, a past Luna has completely forgotten due to amnesia. Kai kidnaps her boyfriend and compels her to hunt for a mole within his organization. As she navigates tangled forces, the two are trapped in a turbulent love-hate relationship. Meanwhile, two powerful clans, the Reeds and Whites, wage fierce business wars. Luna seeks their support to break free. Chaos erupts; her boyfriend is critically injured, and Luna stabs Kai. The story unfolds around undercover missions, elite family rivalry and their tragic, fated romance.