Aliases
My Big Sister Arrived, Onee-chan ga Kita, お姉ちゃんが来た, Oneechan ga Kita, My Sister Came, Onee-chan
WINTER 2014TV_SHORT
Part of this franchise
concluded
Announced
In production
Releasing
Completed
The story revolves around Tomoya Mizuhara, a 13-year-old boy who suddenly gains a big sister when his father remarries. 17-year-old Ichika is a little strange, and her affection for Tomoya is rather overwhelming, if not scary. On top of things, Ichika's friend Ruri is the ultimate sadist. Then there is Ichika's big-breasted quarter-Japanese friend Marina.
(Source: ANN)
(Source: ANN)
Last updated
Oct 28, 2026, 06:19 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
23.5
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 7 hours ago
Top reasons
- Source runway - Estimated material for 6.67 further cours
- Cross-platform popularity index - Aggregate reach of ~28,839 followers
- IP reach across services - Multi-platform footprint of ~53,475 users
Runway
Ok
Source runway looks healthy for a continuation.
Financial & Commercial45
Production Feasibility56
Audience Reception49
Strategic Priors52
Fandom Engagement46
CourScore history
CourScore over time
Last analysedOct 28, 2026, 06:19 AM
Next scheduledin 17 hours
Renewal FAQ
Onee-chan ga Kita renewal questions
Common questions about this title's renewal prospects, answered by Courcast's daily analysis.
- Is Onee-chan ga Kita getting a new season?
- According to Courcast's latest analysis, Onee-chan ga Kita has a 23/100 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 Onee-chan ga Kita be renewed?
- Onee-chan ga Kita currently scores 23 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 Onee-chan ga Kita's renewal probability?
- Onee-chan ga Kita's CourScore is 23 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 | 60 | Oct 13, 2026, 12:00 AM |
| anilist | favorites | GLOBAL | 177 | Oct 13, 2026, 12:00 AM |
| anilist | popularity | GLOBAL | 30,058 | Oct 13, 2026, 12:00 AM |
| anilist | trending | GLOBAL | 0 | Oct 13, 2026, 12:00 AM |
| crunchyroll | episode count | GLOBAL | 12 | Sep 8, 2026, 12:00 AM |
| crunchyroll | episode dislikes | GLOBAL | 83 | Sep 8, 2026, 12:00 AM |
| crunchyroll | episode likes | GLOBAL | 5,890 | Sep 8, 2026, 12:00 AM |
| crunchyroll | series available | GLOBAL | 1 | Sep 8, 2026, 12:00 AM |
| filmarks | mark count | JP | 187 | Oct 13, 2026, 12:00 AM |
| filmarks | score mean | JP | 64 | Oct 13, 2026, 12:00 AM |
| google trends | interest daily | GLOBAL | 6 | Sep 14, 2026, 12:00 AM |
| google trends | interest weekly | GLOBAL | 28 | Sep 6, 2026, 12:00 AM |
| kitsu | favorites | GLOBAL | 16 | Oct 13, 2026, 12:00 AM |
| kitsu | member count | GLOBAL | 2,258 | Oct 13, 2026, 12:00 AM |
| mal | completed | GLOBAL | 89,779 | Oct 13, 2026, 12:00 AM |
| mal | members | GLOBAL | 131,045 | Oct 13, 2026, 12:00 AM |
| mal | plan to watch | GLOBAL | 29,205 | Oct 13, 2026, 12:00 AM |
| mal | rating | GLOBAL | 6.81 | Oct 9, 2026, 12:00 AM |
| mal | source members | GLOBAL | 2,988 | Oct 9, 2026, 12:00 AM |
| mal | source status code | GLOBAL | 3 | Oct 9, 2026, 12:00 AM |
| mal | volumes total | GLOBAL | 15 | Oct 9, 2026, 12:00 AM |
| mal | watching | GLOBAL | 6,089 | Oct 13, 2026, 12:00 AM |
| mangacodex | bd sales avg | JP | 232 | Oct 26, 2026, 12:00 AM |
| mangadex | chapters total | GLOBAL | 228 | Oct 26, 2026, 12:00 AM |
| mangadex | source status code | GLOBAL | 3 | Oct 26, 2026, 12:00 AM |
| mangadex | volumes total | GLOBAL | 15 | Oct 26, 2026, 12:00 AM |
| mangaupdates | bayesian rating | GLOBAL | 6.62 | Oct 26, 2026, 12:00 AM |
| niconico | episode comments | JP | 128,412 | Oct 13, 2026, 12:00 AM |
| niconico | episode mylists | JP | 7,228 | Oct 13, 2026, 12:00 AM |
| niconico | episode views | JP | 2,927,818 | Oct 13, 2026, 12:00 AM |
| comments 7d | GLOBAL | 9 | Oct 13, 2026, 12:00 AM | |
| mentions 1d | GLOBAL | 1 | Jul 13, 2026, 12:00 AM | |
| mentions 7d | GLOBAL | 1 | Oct 13, 2026, 12:00 AM | |
| score 7d | GLOBAL | 72 | Sep 15, 2026, 12:00 AM | |
| thread count | GLOBAL | 1 | Oct 13, 2026, 12:00 AM | |
| threads 7d | GLOBAL | 1 | Oct 13, 2026, 12:00 AM | |
| shikimori | completion ratio | GLOBAL | 0.68 | Oct 13, 2026, 12:00 AM |
| shikimori | member count | GLOBAL | 13,413 | Oct 13, 2026, 12:00 AM |
| shikimori | score mean | GLOBAL | 63.1 | Oct 13, 2026, 12:00 AM |
| simkl | score mean | GLOBAL | 62 | Sep 15, 2026, 12:00 AM |
| tmdb | popularity | GLOBAL | 5.79 | Oct 13, 2026, 12:00 AM |
| tmdb | vote count | GLOBAL | 22 | Oct 13, 2026, 12:00 AM |
| wikipedia | pageviews daily | EN.WIKIPEDIA | 0 | Oct 27, 2026, 12:00 AM |
| youtube | channel views total | GLOBAL | 36,144,520 | Jun 27, 2026, 12:00 AM |
| youtube | subscribers total | GLOBAL | 42,100 | Jun 27, 2026, 12:00 AM |
| youtube | uploads 30d | GLOBAL | 25 | Jun 27, 2026, 12:00 AM |
| youtube | uploads 7d | GLOBAL | 25 | Jun 27, 2026, 12:00 AM |
| youtube | views 30d | GLOBAL | 20,937 | Jun 27, 2026, 12:00 AM |
| youtube | views 7d | GLOBAL | 20,937 | Jun 27, 2026, 12:00 AM |