Unazuki is Motoki's younger sister, attends the T*A Girl's Academy with Rei Hino, and is a waitress at the Fruits Parlor Crown. She is about a year older than Usagi and her friends, and depicted as a sweet, kind girl. In her concept art, it is noted that she doesn't like studying, her grades are below average, and that she admires Rei. She is also described as a fairly careless and pleasent girl who's light on her feet and has a tendency to talk fast.