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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
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

Mar 3, 2026, 01:41 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

70.3

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

Signal coverage: 100% • Signal freshness: High • Updated 3 hours ago

Top reasons

  • Cross-platform audience rating — Weighted audience rating 75.8
  • Cross-platform popularity index — Aggregate reach of ~35,991 followers
  • Favourite base strength — 2,733 cross-platform favourites
Runway
Ok

Source runway looks healthy for a continuation.

Financial & Commercial83
Production Feasibility45
Audience Reception76
Strategic Priors78
Fandom Engagement67

CourScore history

CourScore over time

Last analysedNot yet analysed
Next scheduledWithin ~1 hours
No CourScore readings yet
Latest signals

Fresh telemetry

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

SourceMetricGeoValueCollected
anilistaverage scoreGLOBAL75Mar 2, 2026, 12:00 AM
anilistfavoritesGLOBAL2,733Mar 2, 2026, 12:00 AM
anilistpopularityGLOBAL65,481Mar 2, 2026, 12:00 AM
anilisttrendingGLOBAL2Mar 2, 2026, 12:00 AM
google trendsinterest dailyGLOBAL53Feb 9, 2026, 12:00 AM
google trendsinterest weeklyGLOBAL100Feb 1, 2026, 12:00 AM
kitsufavoritesGLOBAL39Mar 2, 2026, 12:00 AM
kitsumember countGLOBAL4,180Mar 2, 2026, 12:00 AM
kitsurating rankGLOBAL1,928Mar 2, 2026, 12:00 AM
kitsuscore meanGLOBAL76.12Mar 2, 2026, 12:00 AM
malcompletedGLOBAL100,055Mar 2, 2026, 12:00 AM
malplan to watchGLOBAL48,108Mar 2, 2026, 12:00 AM
malwatchingGLOBAL19,782Mar 2, 2026, 12:00 AM
shikimoriscore meanGLOBAL76.4Mar 2, 2026, 12:00 AM
tmdbpopularityGLOBAL8.17Mar 2, 2026, 12:00 AM
tmdbvote countGLOBAL54Mar 2, 2026, 12:00 AM
wikipediapageviews dailyEN.WIKIPEDIA7Feb 21, 2026, 12:00 AM