Minamoto-kun has a face so beautiful that people often mistake him for a girl. Because of his looks, he was bullied by jealous girls in middle school, leaving him traumatized and fearful of women. To escape his past, he attended an all-boys high school and vowed to overcome his fear once he entered college. Just as he begins his new college life, his father remarries and asks him to move out, arranging for him to stay with his aunt — a stunningly beautiful woman and a non-tenured professor at his university. Upon his arrival, she boldly reveals her plan: Minamoto will be her “guinea pig” in her reverse Hikaru Genji project, an experiment that will completely change his life.