Karin is idol from nijigasaki school who very mature and gives off a rather seductive vibe. She uses her adult-like looks to her advantage. Karin is a little bit more childish and nervous than usual, which she dislikes, but she manages to keep up her cool.Because of her modeling activities taking up most of her time, her grades are below average and she has difficulties waking up in the morning.Despite her teasing attitude, she is rather innocent and has a somewhat naive side to her personality.