Kenkou Zenrakei Suiei-bu Umishou
Japanese title: ケンコー全裸系水泳部 ウミショー
Type: TV
Episodes: 13
Premiered: summer 2007
Source: Manga
Genres: Comedy, Sports, Ecchi
Studios: Artland
Producers: Marvelous Entertainment, Pony Canyon, Pony Canyon Enterprises, Geneon Entertainment
Duration: 25 min per ep
Rating: PG-13 - Teens 13 or older

Kaname Okiura, a student of Prefectoral Umineko Shougyou High ("Umishou" for short), joined the school's swimming club in order to learn how to swim, but the club is filled with weirdos, let alone who can teach him swimming. Then, a sunny, happy-go-lucky girl named Amuro Ninagawa who transferred from Okinawa joined the club. Her extraordinary underwater speed and unorthodox swimming style (plus her personal habit of nude swimming—a powerful magnet to teenage boys) surprised every club member, especially Okiura, because she reminds him of a mermaid-like creature he saw only once in his early childhood.

(Source: ANN)