Nao Serizawa is a third-year student at Iwatobi Junior High School, introduced in the second volume of Kouji Ouji's light novel *High☆Speed!* He serves as the swimming club's manager and takes on the role of guiding the first-year members—including Makoto and Haruka, who are freshmen when he meets them. His main responsibility is keeping the club running and helping the younger swimmers get up to speed.
Content compiled by AnimeList.moe from publicly available sources.
