Aliases
My Big Sister Arrived, Onee-chan ga Kita, お姉ちゃんが来た, Default, Oneechan ga Kita, Synonym, My Sister Came, Onee-chan, Japanese, German, Spanish, French
S141WINTER 2014TV_SHORT
Part of this franchise
concluded
Announced
In production
Releasing
Completed
Onee-chan ga Kita
お姉ちゃんが来た
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
Jun 3, 2026, 10:32 PM
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
47.2
CourScore is the probability of an official sequel announcement within 18 months.
Signal coverage: 100% • Signal freshness: High • Updated 18 minutes ago
Top reasons
- Cross-platform popularity index - Aggregate reach of ~13,215 followers
- Cross-platform audience rating - Weighted audience rating 65.1
- IP reach across services - Multi-platform footprint of ~14,513 users
Runway
Ok
Source runway looks healthy for a continuation.
Financial & Commercial66
Production Feasibility24
Audience Reception65
Strategic Priors28
Fandom Engagement22
CourScore history
CourScore over time
Last analysedJun 3, 2026, 10:32 PM
Next scheduledtomorrow
Latest signals
Fresh telemetry
Courcast watches every connected signal to surface the freshest indicators of momentum.
| Source | Metric | Geo | Value | Collected |
|---|---|---|---|---|
| anilist | popularity | GLOBAL | 28,997 | Jun 2, 2026, 12:00 AM |
| anilist | favorites | GLOBAL | 202 | Jun 2, 2026, 12:00 AM |
| anilist | trending | GLOBAL | 0 | Jun 2, 2026, 12:00 AM |
| anilist | average score | GLOBAL | 60 | Jun 2, 2026, 12:00 AM |
| mal | completed | GLOBAL | 88,732 | May 30, 2026, 12:00 AM |
| shikimori | score mean | GLOBAL | 70.2 | May 30, 2026, 12:00 AM |
| mal | plan to watch | GLOBAL | 28,824 | May 30, 2026, 12:00 AM |
| mal | watching | GLOBAL | 6,023 | May 30, 2026, 12:00 AM |
| google trends | interest daily | GLOBAL | 0 | Apr 3, 2026, 12:00 AM |
| google trends | interest weekly | GLOBAL | 33 | Mar 22, 2026, 12:00 AM |
| wikipedia | pageviews daily | EN.WIKIPEDIA | 17 | Mar 30, 2026, 12:00 AM |
| mangadex | chapters total | GLOBAL | 124 | May 23, 2026, 12:00 AM |
| mangadex | source status code | GLOBAL | 3 | May 23, 2026, 12:00 AM |
| mangadex | volumes total | GLOBAL | 15 | May 23, 2026, 12:00 AM |
| mangaupdates | bayesian rating | GLOBAL | 6.84 | May 23, 2026, 12:00 AM |
| kitsu | favorites | GLOBAL | 16 | May 18, 2026, 12:00 AM |
| kitsu | member count | GLOBAL | 2,255 | May 18, 2026, 12:00 AM |
| tmdb | vote count | GLOBAL | 20 | Jun 1, 2026, 12:00 AM |
| tmdb | popularity | GLOBAL | 2.38 | Jun 1, 2026, 12:00 AM |