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Courcast is still in active development - features and data may shift while we polish the experience.

UMISEA banner
UMISEA
Aliases

UMISEA

S2SUMMER 2021ONA
concluded
Announced
In production
Releasing
Completed

UMISEA

XReddit
Sharing the ocean theme, hololive JP and EN's summer collab group, UMISEA, will have story-based videos!

Short animated series of videos featuring Minato Aqua, Houshou Marine, Gawr Gura, and Ninomae Ina'nis of hololive.

Last updated

Jul 28, 2026, 06:01 AM

Franchise overview

Franchise timeline

Review every Courcast-tracked season for this series and jump between entries.

Renewal pulse

Courcast score breakdown

CourScore is the probability of an official sequel announcement within 18 months, blending attention velocity, completion strength, and catalogue health.

CourScore

50.5

CourScore is the probability of an official sequel announcement within 18 months.

Signal coverage: 100% Signal freshness: High Updated 8 hours ago

Top reasons

  • Format continuity - Format (ONA) matches prior mainline entries
  • Cross-platform audience rating - Weighted audience rating 67.0
  • Crunchyroll Like Index - 3,294 likes / 3,310 reactions on recent episodes
Runway
Anime original

This is an anime original, not an adaptation, so there is no source material to run down - renewal turns on sales and popularity rather than runway.

Financial & Commercial51
Production Feasibility53
Audience Reception65
Strategic Priors31
Fandom Engagement34

CourScore history

CourScore over time

Last analysedJul 28, 2026, 06:01 AM
Next scheduledin 16 hours
Renewal FAQ

UMISEA renewal questions

Common questions about this title's renewal prospects, answered by Courcast's daily analysis.

Is UMISEA getting a new season?
According to Courcast's latest analysis, UMISEA has a 50% renewal probability. 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 UMISEA be renewed?
UMISEA currently scores 50 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. Titles scoring above 70 are considered Very Likely to receive a continuation.
What is UMISEA's renewal probability?
UMISEA's CourScore is 50 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-updated probability out of 100.
Latest signals

Fresh telemetry

Courcast watches every connected signal to surface the freshest indicators of momentum.

SourceMetricGeoValueCollected
mangadexsource status codeGLOBAL2Jun 20, 2026, 12:00 AM
crunchyrollepisode countGLOBAL12Jul 27, 2026, 12:00 AM
google trendsinterest weeklyGLOBAL16Jul 12, 2026, 12:00 AM
google trendsinterest dailyGLOBAL0Jul 21, 2026, 12:00 AM
tmdbpopularityGLOBAL4.03Jun 23, 2026, 12:00 AM
crunchyrollepisode likesGLOBAL3,294Jul 27, 2026, 12:00 AM
niconicoepisode commentsJP1,016Jul 27, 2026, 12:00 AM
tmdbvote countGLOBAL3Jun 23, 2026, 12:00 AM
crunchyrollseries availableGLOBAL1Jul 27, 2026, 12:00 AM
niconicoepisode viewsJP137,012Jul 27, 2026, 12:00 AM
crunchyrollepisode dislikesGLOBAL16Jul 27, 2026, 12:00 AM
niconicoepisode mylistsJP724Jul 27, 2026, 12:00 AM
wikipediapageviews dailyEN.WIKIPEDIA17Apr 27, 2026, 12:00 AM
malmembersGLOBAL4,462Jul 27, 2026, 12:00 AM
malwatchingGLOBAL258Jul 27, 2026, 12:00 AM
kitsurating rankGLOBAL5,734Jul 27, 2026, 12:00 AM
anilistaverage scoreGLOBAL63Jul 27, 2026, 12:00 AM
anilistfavoritesGLOBAL12Jul 27, 2026, 12:00 AM
anilistpopularityGLOBAL1,651Jul 27, 2026, 12:00 AM
shikimoricompletion ratioGLOBAL0.44Jul 27, 2026, 12:00 AM
kitsumember countGLOBAL204Jul 27, 2026, 12:00 AM
malplan to watchGLOBAL943Jul 27, 2026, 12:00 AM
shikimoriscore meanGLOBAL68.8Jul 27, 2026, 12:00 AM
anilisttrendingGLOBAL0Jul 27, 2026, 12:00 AM
malcompletedGLOBAL3,101Jul 27, 2026, 12:00 AM
kitsuscore meanGLOBAL69.77Jul 27, 2026, 12:00 AM
shikimorimember countGLOBAL813Jul 27, 2026, 12:00 AM