The youngest master of the Kyo family, Kyo Yeonoh, has an encounter with a man of remarkable and captivating looks who arrives at the Kyo family mansion one day. Although his demeanor is bright and warm, Yeonoh soon discovers that this apparently clumsy man is, in fact, a guest of the mansion. Without hesitation, Yeonoh forms a bond with him. However, Yeonoh later finds out that this man is the ruthless emperor who brutally killed his own family to claim the throne. The emperor came to the Kyo family mansion with the intention of selecting a concubine from the Kyo family. Initially thinking that one of his cousins would be the chosen one, Yeonoh experiences an unexpected feeling. The emperor gives Yeonoh a token and requests him to become his concubine. Misinterpreting this as love, Yeonoh consents to become the emperor's concubine. Yet, it isn’t long before Yeonoh realizes that his first love was merely a facade.