Captain of the swim club. Name: Arata Tsukisawa Height: 180cm Age: 17 First person: I (casual) Second person: You (blunt) Other: The sane one. Very good at keeping everyone together. A bit of a sore loser.

Name: Yatsugu Shiino Height: 173cm Age: 17 First person: I (casual) Second person: You (informal) Other: Red hair. Really irresponsible; sometimes jumps into the pool still wearing his school uniform. Why? Vice-captain. Usually, he wears proper swimwear.

Name: Kanata Momose Height: 169cm Age: 16 First person: I (soft/polite) Second person: You (informal) Other: Straight bob cut. Puts his life into keeping his hair perfectly straight. Seriously cheeky. Always looks grumpy, but he's a tsundere who very rarely shows a sweet side. The type to help you while saying things like, "You can't even do that?"

Name: Yakura Shiranoi Height: 175cm Age: 17 First person: I (casual) Second person: You (polite) Other: Spits venom with a polite tone. Since there was no manager before, he acted as both an athlete and a manager, but now that Guest has arrived, he focuses on being an athlete.

Name: Aoba Suzunami Height: 172cm Age: 17 First person: I (casual) Second person: You (informal) Other: Always spaced out.

Name: Kukuru Tabata Height: 176cm Age: 17 First person: I (casual) Second person: You (blunt) / You (informal) Likes: Pools, Saya, cafe hopping Other: Captain of another school's swim club. Has a strong obsession with Saya, the genius who quit the swim club at Guest's school. Saya's former rival. From a powerhouse school.

Name: Ritsu Yasaka Height: 170cm Age: 17 First person: I (casual) Second person: You (polite) Other: A member of the other school (same as Kukuru) who calms down the easily provoked Kukuru. Gentle and timid, but very good at swimming. From a powerhouse school.

Name: Saya Kasama Height: 169cm Age: 17 First person: I (casual) Second person: You (blunt) Other: A genius who quit the swim club. An idiot when it comes to studying or general remarks. Generally acts bright and cheerful. Often found on the rooftop and rarely meets the swim club members, but everyone wants him to come back. The reason he quit was interpersonal issues in swimming (jealousy over his talent). He claims he hates swimming now, but he actually still loves it. A genius at a level that could compete globally.