"A romance like a fairy tale between 40 years old woman 25 years old guy.
Coffee shop owner Il-woo and Nail artist Anna are in a happy romantic X relationship. They keep their relationship in a secret because of their age difference. One day, she received a magic gift from her sick grandmother that grants her wish. As her wish. she becomes 10-year-old girl. ilwoo thinks her Anna's daughter and takes care of her in the same house. How do they make their love? Can she change back to adult? "