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Courcastクール • Renewal Forecasts
Onii-chan wa Oshimai! banner
Onii-chan wa Oshimai!
Aliases

Onii-chan is Done For!, ONIMAI: Sekarang Aku Kakak Perempuanmu!, อวสานพี่ชาย กลายเป็นพี่สาว, 不當哥哥了！, Я стал сестрой!, ONIMAI: Ab sofort Schwester!, Onii-chan wa Oshimai!, ONIMAI: I'm Now Your Sister!, お兄ちゃんはおしまい！, Default, Oniichan wa Oshimai!, Synonym, Onimai, Onii-chan is Done For, Japanese, English

S231WINTER 2023TV
Branch
Part of this franchise
concluded
Announced
In production
Releasing
Completed

ONIMAI: I'm Now Your Sister!

Onii-chan wa Oshimai!

Mahiro Oyama was just a normal erotic-game loving dude…until he woke up one morning as a woman! Turns out his mad-scientist little sister, Mihari, tried out one of her new experiments on him…with a disastrous outcome, as far as Mahiro’s concerned! But Mihari is as determined to study him as he is determined to go back to his shut-in, game-playing life, and one thing’s for sure…life is going to get a whole lot weirder from here on out!

(Source: Kodansha USA)

Last updated

Jun 3, 2026, 11:10 PM

Franchise overview

Franchise timeline

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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

56.7

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

Signal coverage: 100% • Signal freshness: High • Updated 48 minutes ago

Top reasons

  • Cross-platform audience rating - Weighted audience rating 75.8
  • Cross-platform popularity index - Aggregate reach of ~37,538 followers
  • Favourite base strength - 2,905 cross-platform favourites
Runway
Ok

Source runway looks healthy for a continuation.

Financial & Commercial84
Production Feasibility30
Audience Reception76
Strategic Priors39
Fandom Engagement0

CourScore history

CourScore over time

Last analysedJun 3, 2026, 11:10 PM
Next scheduledin 5 hours
Latest signals

Fresh telemetry

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

SourceMetricGeoValueCollected
google trendsinterest dailyGLOBAL5Apr 16, 2026, 12:00 AM
google trendsinterest weeklyGLOBAL0Apr 12, 2026, 12:00 AM
wikipediapageviews dailyEN.WIKIPEDIA13Mar 23, 2026, 12:00 AM
shikimoriscore meanGLOBAL76.5May 30, 2026, 12:00 AM
kitsufavoritesGLOBAL41Jun 1, 2026, 12:00 AM
tmdbpopularityGLOBAL22.83Jun 1, 2026, 12:00 AM
kitsumember countGLOBAL4,350Jun 1, 2026, 12:00 AM
kitsuscore meanGLOBAL75.99Jun 1, 2026, 12:00 AM
kitsurating rankGLOBAL2,030Jun 1, 2026, 12:00 AM
mangaupdatesbayesian ratingGLOBAL0May 23, 2026, 12:00 AM
mangadexsource status codeGLOBAL2May 23, 2026, 12:00 AM
youtubeviews 30dGLOBAL23,317May 22, 2026, 12:00 AM
youtubechannel views totalGLOBAL3,222May 22, 2026, 12:00 AM
malcompletedGLOBAL103,603May 22, 2026, 12:00 AM
malplan to watchGLOBAL49,441May 22, 2026, 12:00 AM
youtubesubscribers totalGLOBAL6May 22, 2026, 12:00 AM
youtubeviews 7dGLOBAL23,317May 22, 2026, 12:00 AM
youtubeuploads 7dGLOBAL25May 22, 2026, 12:00 AM
tmdbvote countGLOBAL60Jun 1, 2026, 12:00 AM
anilistpopularityGLOBAL70,279Jun 3, 2026, 12:00 AM
youtubeuploads 30dGLOBAL25May 22, 2026, 12:00 AM
malwatchingGLOBAL20,050May 22, 2026, 12:00 AM
anilistaverage scoreGLOBAL75Jun 3, 2026, 12:00 AM
anilisttrendingGLOBAL3Jun 3, 2026, 12:00 AM
anilistfavoritesGLOBAL2,905Jun 3, 2026, 12:00 AM