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！, Oniichan wa Oshimai!, Onimai, Onii-chan is Done For
S1WINTER 2023TV
Branch
Part of this franchise
concluded
Announced
In production
Releasing
Completed
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)
(Source: Kodansha USA)
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
62.1
CourScore is the probability of an official sequel announcement within 18 months.
Signal coverage: 100% • Signal freshness: High • Updated 9 hours ago
Top reasons
- Source runway - Source material runway assessed as 'ok'
- Cross-platform audience rating - Weighted audience rating 77.4
- Cross-platform popularity index - Aggregate reach of ~65,626 followers
Runway
Ok
Source runway looks healthy for a continuation.
Financial & Commercial58
Production Feasibility60
Audience Reception85
Strategic Priors63
Fandom Engagement28
CourScore history
CourScore over time
Last analysedJul 28, 2026, 06:01 AM
Next scheduled3 hours ago
Renewal FAQ
ONIMAI: I'm Now Your Sister! renewal questions
Common questions about this title's renewal prospects, answered by Courcast's daily analysis.
- Is ONIMAI: I'm Now Your Sister! getting a new season?
- According to Courcast's latest analysis, ONIMAI: I'm Now Your Sister! has a 62% 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 ONIMAI: I'm Now Your Sister! be renewed?
- ONIMAI: I'm Now Your Sister! currently scores 62 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 ONIMAI: I'm Now Your Sister!'s renewal probability?
- ONIMAI: I'm Now Your Sister!'s CourScore is 62 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.
| Source | Metric | Geo | Value | Collected |
|---|---|---|---|---|
| mal | rating | GLOBAL | 7.87 | Jul 22, 2026, 12:00 AM |
| simkl | score mean | GLOBAL | 75 | Jul 16, 2026, 12:00 AM |
| justwatch | jp platform count | JP | 1 | Jul 27, 2026, 12:00 AM |
| crunchyroll | series available | GLOBAL | 1 | Jul 27, 2026, 12:00 AM |
| niconico | episode views | JP | 8,237,869 | Jul 27, 2026, 12:00 AM |
| mal | source members | GLOBAL | 24,996 | Jul 22, 2026, 12:00 AM |
| google trends | interest weekly | GLOBAL | 30 | Jul 12, 2026, 12:00 AM |
| niconico | episode comments | JP | 4,243,843 | Jul 27, 2026, 12:00 AM |
| crunchyroll | episode likes | GLOBAL | 23,170 | Jul 27, 2026, 12:00 AM |
| mangaupdates | bayesian rating | GLOBAL | 0 | Jul 22, 2026, 12:00 AM |
| filmarks | score mean | JP | 80 | Jul 27, 2026, 12:00 AM |
| filmarks | mark count | JP | 3,425 | Jul 27, 2026, 12:00 AM |
| crunchyroll | episode count | GLOBAL | 12 | Jul 27, 2026, 12:00 AM |
| crunchyroll | episode dislikes | GLOBAL | 155 | Jul 27, 2026, 12:00 AM |
| niconico | episode mylists | JP | 17,273 | Jul 27, 2026, 12:00 AM |
| youtube | subscribers total | GLOBAL | 0 | Jun 29, 2026, 12:00 AM |
| tmdb | popularity | GLOBAL | 15.52 | Jul 27, 2026, 12:00 AM |
| youtube | uploads 30d | GLOBAL | 25 | Jun 29, 2026, 12:00 AM |
| anilist | favorites | GLOBAL | 3,033 | Jul 28, 2026, 12:00 AM |
| anilist | average score | GLOBAL | 75 | Jul 28, 2026, 12:00 AM |
| anilist | popularity | GLOBAL | 72,733 | Jul 28, 2026, 12:00 AM |
| youtube | uploads 7d | GLOBAL | 25 | Jun 29, 2026, 12:00 AM |
| youtube | views 7d | GLOBAL | 20,721 | Jun 29, 2026, 12:00 AM |
| youtube | channel views total | GLOBAL | 0 | Jun 29, 2026, 12:00 AM |
| youtube | views 30d | GLOBAL | 20,721 | Jun 29, 2026, 12:00 AM |
| anilist | trending | GLOBAL | 0 | Jul 28, 2026, 12:00 AM |
| mangacodex | manga volume trend pct | JP | -21.83 | Jul 25, 2026, 12:00 AM |
| mangadex | source status code | GLOBAL | 2 | Jul 22, 2026, 12:00 AM |
| threads 7d | GLOBAL | 1 | Jul 20, 2026, 12:00 AM | |
| mal | source status code | GLOBAL | 2 | Jul 22, 2026, 12:00 AM |
| comments 7d | GLOBAL | 21 | Jul 20, 2026, 12:00 AM | |
| mentions 7d | GLOBAL | 1 | Jul 20, 2026, 12:00 AM | |
| mangacodex | manga latest volume sales | JP | 11,100 | Jul 25, 2026, 12:00 AM |
| score 7d | GLOBAL | 2 | Jul 20, 2026, 12:00 AM | |
| thread count | GLOBAL | 1 | Jul 20, 2026, 12:00 AM | |
| mangacodex | manga circulation | JP | 500,000 | Jul 25, 2026, 12:00 AM |
| google trends | interest daily | GLOBAL | 12 | Jul 23, 2026, 12:00 AM |
| x official jp | silent days | JP | 442 | Jul 18, 2026, 12:00 AM |
| x | followers count | GLOBAL | 124,188 | Jul 18, 2026, 12:00 AM |
| ann | rating | GLOBAL | 7.4 | Jul 18, 2026, 12:00 AM |
| wikipedia | pageviews daily | EN.WIKIPEDIA | 0 | Jul 25, 2026, 12:00 AM |
| shikimori | score mean | GLOBAL | 76.5 | Jul 27, 2026, 12:00 AM |
| mal | plan to watch | GLOBAL | 50,306 | Jul 27, 2026, 12:00 AM |
| kitsu | member count | GLOBAL | 4,440 | Jul 27, 2026, 12:00 AM |
| mal | completed | GLOBAL | 105,366 | Jul 27, 2026, 12:00 AM |
| kitsu | score mean | GLOBAL | 76.08 | Jul 27, 2026, 12:00 AM |
| shikimori | member count | GLOBAL | 30,407 | Jul 27, 2026, 12:00 AM |
| kitsu | rating rank | GLOBAL | 2,004 | Jul 27, 2026, 12:00 AM |
| mal | members | GLOBAL | 193,176 | Jul 27, 2026, 12:00 AM |
| mal | watching | GLOBAL | 20,124 | Jul 27, 2026, 12:00 AM |
| kitsu | favorites | GLOBAL | 41 | Jul 27, 2026, 12:00 AM |
| shikimori | completion ratio | GLOBAL | 0.65 | Jul 27, 2026, 12:00 AM |
| tmdb | vote count | GLOBAL | 63 | Jul 27, 2026, 12:00 AM |