ケンコー全裸系水泳部 ウミショー
Kenkou Zenrakei Suieibu Umishou
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: Anime News Network)
Names
| Original | ケンコー全裸系水泳部 ウミショー (japanese) |
|---|---|
| Romaji | Kenkou Zenrakei Suieibu Umishou |
| English | — |
| Chinese | 健康全裸游泳社 海商 (simplified · via bangumi) |
| Also known as | Kenkoo Zenrakei Suieibu Umishou · Umisho High School Naked Swimming Club · Umisho |
Facts
| Format | TV series · 13 ep · 25 min · 5h total |
|---|---|
| Aired | 2007-07-04 → 2007-09-26 (Summer 2007) |
| Status | FINISHED |
| Studio | Artland |
| Source | Manga |
| Origin | Japan (Anime) |
| Demographic | Shounen |
| Genres | ComedyEcchiSports |
| Themes | SchoolSwimmingSchool ClubMale ProtagonistEnsemble Cast |
Reception
| Community score | 6.75 / 10 |
|---|---|
| Bayesian score | 7.07 / 10 |
| Composite | 46.9 |
| On lists | 7,856 |
| Favourited | 48 (0.6%) |
| Completion | 79.2% |
| Drop rate | 7.9% |
| In backlog | 45.5% |
| Score spread σ | 1.80 |
Score distribution
1322373804955251646377108453924410130
Where it places
| Cohort | Value | Tier | Rank |
|---|---|---|---|
| Studio | Artland | D | 15 of 28 |
| Broadcast season | Summer 2007 | D | 24 of 45 |
| Year | 2007 | D | 138 of 234 |
| Genre | Ecchi | C | 254 of 745 |
| Genre | Sports | D | 321 of 447 |
| Era | Late 2000s | D | 693 of 1,149 |
| Demographic | Shounen | D | 973 of 1,219 |
| Season (all years) | Summer | D | 1,012 of 1,662 |
| Length | Single-cour | D | 1,582 of 2,668 |
| Source material | Manga | D | 2,115 of 3,025 |
| Format | TV series | D | 2,129 of 3,322 |
| Genre | Comedy | D | 2,155 of 3,488 |
| Origin | Japan | D | 4,385 of 7,157 |
Key staff
| Director | Kouichirou Soutome, Chikako Shibata, Satoshi Fujita |
|---|---|
| Series composition | Mamiko Ikeda |
| Character design | Rie Nishino |
| Original creator | Mitsuru Hattori |
AniList id 2602 · MAL id 2602 · Bangumi 594 · record updated 2026-08-27