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
S19WINTER 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
Aug 31, 2026, 09:49 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
54.8
CourScore is the probability of an official sequel announcement within 18 months.
Signal coverage: 100% • Signal freshness: High • Updated 11 days ago
Top reasons
- Source runway - Source material runway assessed as 'ok'
- Committee renewal track record - Lead committee members (C2C) renew 12% of productions, above the catalogue average of 3%
- Cross-platform popularity index - Aggregate reach of ~28,665 followers
Runway
Ok
Source runway looks healthy for a continuation.
Financial & Commercial52
Production Feasibility52
Audience Reception71
Strategic Priors61
Fandom Engagement25
CourScore history
CourScore over time
Last analysedAug 31, 2026, 09:49 AM
Next scheduled10 days ago
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 55% 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 Onee-chan ga Kita be renewed?
- Onee-chan ga Kita currently scores 55 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 Onee-chan ga Kita's renewal probability?
- Onee-chan ga Kita's CourScore is 55 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 |
|---|---|---|---|---|
| anilist | average score | GLOBAL | 60 | Sep 1, 2026, 12:00 AM |
| anilist | favorites | GLOBAL | 195 | Sep 1, 2026, 12:00 AM |
| anilist | popularity | GLOBAL | 29,820 | Sep 1, 2026, 12:00 AM |
| anilist | trending | GLOBAL | 0 | Sep 1, 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 | 179 | Sep 8, 2026, 12:00 AM |
| filmarks | score mean | JP | 62 | Sep 8, 2026, 12:00 AM |
| google trends | interest daily | GLOBAL | 0 | Aug 31, 2026, 12:00 AM |
| google trends | interest weekly | GLOBAL | 20 | Aug 23, 2026, 12:00 AM |
| kitsu | favorites | GLOBAL | 16 | Sep 1, 2026, 12:00 AM |
| kitsu | member count | GLOBAL | 2,255 | Sep 1, 2026, 12:00 AM |
| mal | completed | GLOBAL | 89,496 | Sep 1, 2026, 12:00 AM |
| mal | members | GLOBAL | 130,659 | Sep 1, 2026, 12:00 AM |
| mal | plan to watch | GLOBAL | 29,121 | Sep 1, 2026, 12:00 AM |
| mal | rating | GLOBAL | 6.8 | Sep 3, 2026, 12:00 AM |
| mal | source members | GLOBAL | 2,957 | Sep 3, 2026, 12:00 AM |
| mal | source status code | GLOBAL | 3 | Sep 3, 2026, 12:00 AM |
| mal | volumes total | GLOBAL | 15 | Sep 3, 2026, 12:00 AM |
| mal | watching | GLOBAL | 6,078 | Sep 1, 2026, 12:00 AM |
| mangacodex | bd sales avg | JP | 232 | Sep 6, 2026, 12:00 AM |
| mangadex | chapters total | GLOBAL | 228 | Sep 10, 2026, 12:00 AM |
| mangadex | source status code | GLOBAL | 3 | Sep 10, 2026, 12:00 AM |
| mangadex | volumes total | GLOBAL | 15 | Sep 10, 2026, 12:00 AM |
| mangaupdates | bayesian rating | GLOBAL | 6.62 | Sep 10, 2026, 12:00 AM |
| niconico | episode comments | JP | 128,412 | Sep 8, 2026, 12:00 AM |
| niconico | episode mylists | JP | 7,229 | Sep 8, 2026, 12:00 AM |
| niconico | episode views | JP | 2,927,455 | Sep 8, 2026, 12:00 AM |
| comments 7d | GLOBAL | 3 | Sep 1, 2026, 12:00 AM | |
| mentions 1d | GLOBAL | 1 | Jul 13, 2026, 12:00 AM | |
| mentions 7d | GLOBAL | 1 | Sep 1, 2026, 12:00 AM | |
| score 7d | GLOBAL | 245 | Aug 18, 2026, 12:00 AM | |
| thread count | GLOBAL | 1 | Sep 1, 2026, 12:00 AM | |
| threads 7d | GLOBAL | 1 | Sep 1, 2026, 12:00 AM | |
| shikimori | completion ratio | GLOBAL | 0.68 | Sep 1, 2026, 12:00 AM |
| shikimori | member count | GLOBAL | 13,367 | Sep 1, 2026, 12:00 AM |
| shikimori | score mean | GLOBAL | 63.1 | Sep 1, 2026, 12:00 AM |
| tmdb | popularity | GLOBAL | 4.48 | Sep 1, 2026, 12:00 AM |
| tmdb | vote count | GLOBAL | 21 | Sep 1, 2026, 12:00 AM |
| wikipedia | pageviews daily | EN.WIKIPEDIA | 27 | Aug 2, 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 |