Yūna, a high school student, cannot date any boy even if she was interested in them due to her mother's strict disciplinary rules. Yūna's mother was once betrayed by her husband and got into a divorce. This incident made it impossible for Yūna's mother to trust men for the rest of her life. One day, Yūna was approached by her male childhood friend, and her mother saw this interaction. Yūna was rebuked and runs away to another location. There, Konaki-Jijii was passing by and drops a scroll. Within the scroll was a drawing of a beautiful man that left Yūna spellbound. As she admired the art, the young man slipped out of the scroll and into reality!