Satou Mitsuru is a creator of female video game characters who happens to have designed a female character that resembles his male live-in housekeeper, Ninomae Nagisa. Eager to see his creation come to life, Mitsuru hires Nagisa as his new live-in housekeeper.
Despite Nagisa's attractive appearance, his flamboyant style often leaves others with the wrong impression. Mitsuru, however, sees past his exterior and recognizes his sweet nature. Nagisa vows to win over Mitsuru's heart, even if it means transforming from his angelic self into a fierce beast.
Mitsuru struggles to resist Nagisa's advances, especially since he resembles the character he loves so much. However, he continues to reject Nagisa's advances in their ongoing relationship.
