Aliases
Kenkoo Zenrakei Suieibu Umishou, Umisho High School Naked Swimming Club, Umisho, Kenkou Zenrakei Suieibu Umishou, ケンコー全裸系水泳部 ウミショー, Kenkou Zenrakei Suiei-bu Umishou, Kenkou Zenra-kei Suiei-bu Umishou, Kenkoo Zenra-kei Suiei-bu Umishou
S1SUMMER 2007TV
Part of this franchise
concluded
Announced
In production
Releasing
Completed
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)
(Source: Anime News Network)
Last updated
Oct 28, 2026, 06:18 AM
Franchise overview
Franchise timeline
Review every Courcast-tracked season for this series and jump between entries.
Renewal pulse
Courcast score breakdown
CourScore weighs signals for an official sequel announcement within 18 months, blending attention velocity, completion strength, and catalogue health.
CourScore
24.0
CourScore measures renewal signals out of 100. It is not a calibrated probability of an official sequel announcement within 18 months.
Signal coverage: 100% • Signal freshness: High • Updated 10 hours ago
Top reasons
- Source runway - Estimated material for 3.25 further cours
- Cross-platform popularity index - Aggregate reach of ~9,125 followers
- IP reach across services - Multi-platform footprint of ~18,878 users
Runway
Ok
Source runway looks healthy for a continuation.
Financial & Commercial63
Production Feasibility62
Audience Reception54
Strategic Priors52
Fandom Engagement68
CourScore history
CourScore over time
Last analysedOct 28, 2026, 06:18 AM
Next scheduledin 14 hours
Renewal FAQ
Kenkou Zenrakei Suieibu Umishou renewal questions
Common questions about this title's renewal prospects, answered by Courcast's daily analysis.
- Is Kenkou Zenrakei Suieibu Umishou getting a new season?
- According to Courcast's latest analysis, Kenkou Zenrakei Suieibu Umishou has a 24/100 renewal signal score. This score is updated daily and blends fandom momentum, streaming signals, source-material runway, and franchise history. Check back regularly for the latest forecast.
- Will Kenkou Zenrakei Suieibu Umishou be renewed?
- Kenkou Zenrakei Suieibu Umishou currently scores 24 out of 100 on Courcast. Signals driving this estimate include online discussion volume, sequel history within the franchise, and platform engagement data - all recalculated daily. Scores from 70 indicate strong renewal signals; scores from 85 are labelled very likely.
- What is Kenkou Zenrakei Suieibu Umishou's renewal probability?
- Kenkou Zenrakei Suieibu Umishou's CourScore is 24 as of the latest update. CourScore is Courcast's proprietary metric that aggregates over a dozen renewal signals - from source-material runway to social buzz - into a single daily signal score out of 100.
Latest signals
Fresh telemetry
Courcast watches every connected signal to surface the freshest indicators of momentum.
| Source | Metric | Geo | Value | Collected |
|---|---|---|---|---|
| anilist | average score | GLOBAL | 66 | Oct 11, 2026, 12:00 AM |
| anilist | favorites | GLOBAL | 45 | Oct 11, 2026, 12:00 AM |
| anilist | popularity | GLOBAL | 7,921 | Oct 11, 2026, 12:00 AM |
| anilist | trending | GLOBAL | 0 | Oct 11, 2026, 12:00 AM |
| crunchyroll | episode count | GLOBAL | 53 | Sep 13, 2026, 12:00 AM |
| crunchyroll | episode dislikes | GLOBAL | 313 | Sep 13, 2026, 12:00 AM |
| crunchyroll | episode likes | GLOBAL | 30,318 | Sep 13, 2026, 12:00 AM |
| crunchyroll | series available | GLOBAL | 1 | Sep 13, 2026, 12:00 AM |
| filmarks | mark count | JP | 139 | Oct 11, 2026, 12:00 AM |
| filmarks | score mean | JP | 66 | Oct 11, 2026, 12:00 AM |
| google trends | interest daily | GLOBAL | 0 | Sep 12, 2026, 12:00 AM |
| google trends | interest weekly | GLOBAL | 0 | Sep 20, 2026, 12:00 AM |
| google trends | momentum log ratio | GLOBAL | 0 | Sep 20, 2026, 12:00 AM |
| justwatch | jp platform count | JP | 2 | Oct 11, 2026, 12:00 AM |
| kitsu | favorites | GLOBAL | 7 | Oct 11, 2026, 12:00 AM |
| kitsu | member count | GLOBAL | 3,772 | Oct 11, 2026, 12:00 AM |
| kitsu | rating rank | GLOBAL | 4,573 | Oct 11, 2026, 12:00 AM |
| kitsu | score mean | GLOBAL | 71.45 | Oct 11, 2026, 12:00 AM |
| mal | completed | GLOBAL | 22,359 | Oct 11, 2026, 12:00 AM |
| mal | members | GLOBAL | 42,192 | Oct 11, 2026, 12:00 AM |
| mal | plan to watch | GLOBAL | 14,398 | Oct 11, 2026, 12:00 AM |
| mal | watching | GLOBAL | 2,273 | Oct 11, 2026, 12:00 AM |
| mangadex | chapters total | GLOBAL | 130 | Oct 26, 2026, 12:00 AM |
| mangadex | source status code | GLOBAL | 3 | Oct 26, 2026, 12:00 AM |
| mangadex | volumes total | GLOBAL | 9 | Oct 26, 2026, 12:00 AM |
| mangaupdates | bayesian rating | GLOBAL | 6.03 | Oct 26, 2026, 12:00 AM |
| mfc | entry likes | GLOBAL | 3 | Oct 23, 2026, 12:00 AM |
| mfc | figures total | GLOBAL | 5 | Oct 23, 2026, 12:00 AM |
| mfc | goods total | GLOBAL | 0 | Oct 23, 2026, 12:00 AM |
| mfc | media total | GLOBAL | 9 | Oct 23, 2026, 12:00 AM |
| mfc | merch added 30d | GLOBAL | 0 | Oct 23, 2026, 12:00 AM |
| mfc | merch total | GLOBAL | 14 | Oct 23, 2026, 12:00 AM |
| niconico | episode comments | JP | 90,601 | Oct 11, 2026, 12:00 AM |
| niconico | episode mylists | JP | 7,348 | Oct 11, 2026, 12:00 AM |
| niconico | episode views | JP | 762,534 | Oct 11, 2026, 12:00 AM |
| shikimori | completion ratio | GLOBAL | 0.56 | Oct 11, 2026, 12:00 AM |
| shikimori | member count | GLOBAL | 5,608 | Oct 11, 2026, 12:00 AM |
| shikimori | score mean | GLOBAL | 71.2 | Oct 11, 2026, 12:00 AM |
| simkl | score mean | GLOBAL | 69 | Sep 6, 2026, 12:00 AM |
| tmdb | popularity | GLOBAL | 4.5 | Oct 11, 2026, 12:00 AM |
| tmdb | vote count | GLOBAL | 14 | Oct 11, 2026, 12:00 AM |
| wikipedia | pageviews daily | EN.WIKIPEDIA | 0 | Oct 13, 2026, 12:00 AM |
| youtube | channel views total | GLOBAL | 36,144,520 | Jun 27, 2026, 12:00 AM |
| youtube | subscribers total | GLOBAL | 42,100 | Jun 27, 2026, 12:00 AM |
| youtube | uploads 30d | GLOBAL | 25 | Jun 27, 2026, 12:00 AM |
| youtube | uploads 7d | GLOBAL | 25 | Jun 27, 2026, 12:00 AM |
| youtube | views 30d | GLOBAL | 20,937 | Jun 27, 2026, 12:00 AM |
| youtube | views 7d | GLOBAL | 20,937 | Jun 27, 2026, 12:00 AM |