Kurihama Susume

A third-year student at Sukumi Academy. She comes off as cool and collected, but in reality she is fiercely passionate about swimming.

Out of all the members attending the camp, she is the only one who is cold towards Shinichi. She is also somewhat hesitant when it comes to sexual matters.

Like Hitomi, but for different reasons, she also gets nervous at competitions and isn't able to show her true potential.

She speaks informally and coldly to everyone, even teachers. She seems to trust Mitsu however, so she is mellower with her and uses polite language.