A girl with red hair and golden eyes who was born as a "devil who uses magic beasts" has lived without a name, being oppressed by her family and the people of the city. One day, she is hired as a maid of the angelic second prince, Michael, and she is named Iris. Iris, who thinks she brings misfortune to her, tries to leave her demon, Michael, who is kind to her. Then Michael completely changes from the atmosphere of an angel...!?