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, 오빠는 끝!
S1WINTER 2023TV
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
Oct 28, 2026, 06:17 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
60.5
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 9 hours ago
Top reasons
- Source runway - Source material runway assessed as 'ok'
- Cross-platform audience rating - Weighted audience rating 77.4
- Trailer reception (YouTube) - Official trailer has 853,231 views
Runway
Ok
Source runway looks healthy for a continuation.
Financial & Commercial56
Production Feasibility60
Audience Reception76
Strategic Priors69
Fandom Engagement57
CourScore history
CourScore over time
Last analysedOct 28, 2026, 06:17 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 61/100 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 ONIMAI: I'm Now Your Sister! be renewed?
- ONIMAI: I'm Now Your Sister! currently scores 61 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 ONIMAI: I'm Now Your Sister!'s renewal probability?
- ONIMAI: I'm Now Your Sister!'s CourScore is 61 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 | 75 | Oct 27, 2026, 12:00 AM |
| anilist | favorites | GLOBAL | 3,134 | Oct 27, 2026, 12:00 AM |
| anilist | popularity | GLOBAL | 75,700 | Oct 27, 2026, 12:00 AM |
| anilist | trending | GLOBAL | 5 | Oct 27, 2026, 12:00 AM |
| animate | merch rank | JP | 3 | Oct 17, 2026, 12:00 AM |
| ann | rating | GLOBAL | 7.4 | Oct 25, 2026, 12:00 AM |
| crunchyroll | episode count | GLOBAL | 12 | Oct 17, 2026, 12:00 AM |
| crunchyroll | episode dislikes | GLOBAL | 156 | Oct 17, 2026, 12:00 AM |
| crunchyroll | episode likes | GLOBAL | 23,577 | Oct 17, 2026, 12:00 AM |
| crunchyroll | series available | GLOBAL | 1 | Oct 17, 2026, 12:00 AM |
| filmarks | mark count | JP | 3,585 | Oct 27, 2026, 12:00 AM |
| filmarks | score mean | JP | 80 | Oct 27, 2026, 12:00 AM |
| google trends | interest daily | GLOBAL | 0 | Oct 22, 2026, 12:00 AM |
| google trends | interest weekly | GLOBAL | 0 | Oct 18, 2026, 12:00 AM |
| google trends | momentum log ratio | GLOBAL | 0 | Oct 18, 2026, 12:00 AM |
| justwatch | jp platform count | JP | 1 | Oct 27, 2026, 12:00 AM |
| kitsu | favorites | GLOBAL | 43 | Oct 27, 2026, 12:00 AM |
| kitsu | member count | GLOBAL | 4,531 | Oct 27, 2026, 12:00 AM |
| kitsu | rating rank | GLOBAL | 2,024 | Oct 27, 2026, 12:00 AM |
| kitsu | score mean | GLOBAL | 76.09 | Oct 27, 2026, 12:00 AM |
| mal | completed | GLOBAL | 107,767 | Oct 27, 2026, 12:00 AM |
| mal | members | GLOBAL | 197,015 | Oct 27, 2026, 12:00 AM |
| mal | plan to watch | GLOBAL | 51,289 | Oct 27, 2026, 12:00 AM |
| mal | rating | GLOBAL | 7.87 | Oct 26, 2026, 12:00 AM |
| mal | source members | GLOBAL | 25,409 | Oct 26, 2026, 12:00 AM |
| mal | source status code | GLOBAL | 2 | Oct 26, 2026, 12:00 AM |
| mal | watching | GLOBAL | 20,279 | Oct 27, 2026, 12:00 AM |
| mangacodex | manga circulation | JP | 500,000 | Oct 26, 2026, 12:00 AM |
| mangacodex | manga latest volume sales | JP | 11,100 | Oct 26, 2026, 12:00 AM |
| mangacodex | manga volume trend pct | JP | -21.83 | Oct 26, 2026, 12:00 AM |
| mangadex | source status code | GLOBAL | 2 | Oct 26, 2026, 12:00 AM |
| mangaupdates | bayesian rating | GLOBAL | 0 | Oct 26, 2026, 12:00 AM |
| mfc | entry likes | GLOBAL | 463 | Oct 23, 2026, 12:00 AM |
| mfc | figures total | GLOBAL | 60 | Oct 23, 2026, 12:00 AM |
| mfc | goods total | GLOBAL | 1,323 | Oct 23, 2026, 12:00 AM |
| mfc | media total | GLOBAL | 263 | Oct 23, 2026, 12:00 AM |
| mfc | merch total | GLOBAL | 1,646 | Oct 23, 2026, 12:00 AM |
| niconico | episode comments | JP | 4,244,699 | Oct 27, 2026, 12:00 AM |
| niconico | episode mylists | JP | 17,395 | Oct 27, 2026, 12:00 AM |
| niconico | episode views | JP | 8,292,463 | Oct 27, 2026, 12:00 AM |
| comments 7d | GLOBAL | 18 | Oct 27, 2026, 12:00 AM | |
| mentions 1d | GLOBAL | 1 | Oct 7, 2026, 12:00 AM | |
| mentions 7d | GLOBAL | 1 | Oct 27, 2026, 12:00 AM | |
| score 7d | GLOBAL | 9 | Oct 27, 2026, 12:00 AM | |
| thread count | GLOBAL | 1 | Oct 27, 2026, 12:00 AM | |
| threads 7d | GLOBAL | 1 | Oct 27, 2026, 12:00 AM | |
| shikimori | completion ratio | GLOBAL | 0.65 | Oct 27, 2026, 12:00 AM |
| shikimori | member count | GLOBAL | 30,985 | Oct 27, 2026, 12:00 AM |
| shikimori | score mean | GLOBAL | 76.4 | Oct 27, 2026, 12:00 AM |
| simkl | score mean | GLOBAL | 75 | Oct 23, 2026, 12:00 AM |
| tmdb | popularity | GLOBAL | 20.9 | Oct 27, 2026, 12:00 AM |
| tmdb | vote count | GLOBAL | 72 | Oct 27, 2026, 12:00 AM |
| wikipedia | pageviews daily | EN.WIKIPEDIA | 0 | Oct 26, 2026, 12:00 AM |
| x | followers count | GLOBAL | 124,086 | Sep 15, 2026, 12:00 AM |
| x | followers delta | GLOBAL | -38 | Sep 15, 2026, 12:00 AM |
| x official jp | posts 7d | JP | 1 | Aug 12, 2026, 12:00 AM |
| x official jp | silent days | JP | 23 | Oct 10, 2026, 12:00 AM |
| youtube | channel views total | GLOBAL | 0 | Jun 29, 2026, 12:00 AM |
| youtube | subscribers total | GLOBAL | 0 | Jun 29, 2026, 12:00 AM |
| youtube | trailer views | GLOBAL | 853,231 | Oct 27, 2026, 12:00 AM |
| youtube | uploads 30d | GLOBAL | 25 | Jun 29, 2026, 12:00 AM |
| youtube | uploads 7d | GLOBAL | 25 | Jun 29, 2026, 12:00 AM |
| youtube | views 30d | GLOBAL | 20,721 | Jun 29, 2026, 12:00 AM |
| youtube | views 7d | GLOBAL | 20,721 | Jun 29, 2026, 12:00 AM |