concluded
Announced
In production
Releasing
Completed
Wataru Minakami is a top student who failed his high school entrance exam because of a computer glitch. He later discovered that he was accepted to Stargazer Hill Academy, which is located at a mysterious place called Promised Island. At the request of his father, Wataru is whisked away to the island, and before he can settle in, a dozen of cute and charming girls start to flock him and claim to be his younger sisters. As Wataru gets closer to his newfound siblings, a deeper mystery as to why they were sent to the island comes to play.
(Source: Anime News Network)
(Source: Anime News Network)
Last updated
Oct 28, 2026, 06:21 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: Medium • Updated 10 hours ago
Top reasons
- Format continuity - Format (TV) matches prior mainline entries
- Cross-platform popularity index - Aggregate reach of ~6,939 followers
- Domestic episode engagement (Niconico) - 3,187,755 episode views on Niconico (JP domestic)
Runway
Unknown
Source runway is unclear, so feasibility is treated as unknown.
Financial & Commercial65
Production Feasibility49
Audience Reception60
Strategic Priors59
Fandom Engagement57
CourScore history
CourScore over time
Last analysedOct 28, 2026, 06:21 AM
Next scheduledin 14 hours
Renewal FAQ
Sister Princess renewal questions
Common questions about this title's renewal prospects, answered by Courcast's daily analysis.
- Is Sister Princess getting a new season?
- According to Courcast's latest analysis, Sister Princess has a 24/100 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 Sister Princess be renewed?
- Sister Princess currently scores 24 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 Sister Princess's renewal probability?
- Sister Princess's CourScore is 24 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 2, 2026, 12:00 AM |
| anilist | favorites | GLOBAL | 45 | Oct 2, 2026, 12:00 AM |
| anilist | popularity | GLOBAL | 5,904 | Oct 2, 2026, 12:00 AM |
| anilist | trending | GLOBAL | 0 | Oct 2, 2026, 12:00 AM |
| ann | rating | GLOBAL | 5.94 | Oct 25, 2026, 12:00 AM |
| cdjapan | bd rank | JP | 3 | Oct 2, 2026, 12:00 AM |
| crunchyroll | episode count | GLOBAL | 12 | Sep 11, 2026, 12:00 AM |
| crunchyroll | episode dislikes | GLOBAL | 315 | Sep 11, 2026, 12:00 AM |
| crunchyroll | episode likes | GLOBAL | 35,803 | Sep 11, 2026, 12:00 AM |
| crunchyroll | series available | GLOBAL | 1 | Sep 11, 2026, 12:00 AM |
| filmarks | mark count | JP | 102 | Oct 2, 2026, 12:00 AM |
| filmarks | score mean | JP | 68 | Oct 2, 2026, 12:00 AM |
| google trends | interest daily | GLOBAL | 0 | Oct 1, 2026, 12:00 AM |
| google trends | interest weekly | GLOBAL | 48 | Sep 20, 2026, 12:00 AM |
| google trends | momentum log ratio | GLOBAL | 0 | Sep 20, 2026, 12:00 AM |
| justwatch | jp platform count | JP | 2 | Oct 2, 2026, 12:00 AM |
| kitsu | favorites | GLOBAL | 1,929 | Oct 2, 2026, 12:00 AM |
| kitsu | member count | GLOBAL | 79,854 | Oct 2, 2026, 12:00 AM |
| kitsu | rating rank | GLOBAL | 436 | Oct 2, 2026, 12:00 AM |
| kitsu | score mean | GLOBAL | 81.77 | Oct 2, 2026, 12:00 AM |
| mal | chapters total | GLOBAL | 54 | Oct 9, 2026, 12:00 AM |
| mal | completed | GLOBAL | 11,888 | Oct 16, 2026, 12:00 AM |
| mal | members | GLOBAL | 27,625 | Oct 16, 2026, 12:00 AM |
| mal | plan to watch | GLOBAL | 10,057 | Oct 16, 2026, 12:00 AM |
| mal | source members | GLOBAL | 460 | Oct 9, 2026, 12:00 AM |
| mal | source status code | GLOBAL | 3 | Oct 9, 2026, 12:00 AM |
| mal | volumes total | GLOBAL | 12 | Oct 9, 2026, 12:00 AM |
| mal | watching | GLOBAL | 2,048 | Oct 16, 2026, 12:00 AM |
| mangacodex | bd sales avg | JP | 8,700 | Oct 26, 2026, 12:00 AM |
| mangaupdates | bayesian rating | GLOBAL | 6.31 | Oct 26, 2026, 12:00 AM |
| mfc | entry likes | GLOBAL | 39 | Oct 23, 2026, 12:00 AM |
| mfc | figures total | GLOBAL | 91 | Oct 23, 2026, 12:00 AM |
| mfc | goods total | GLOBAL | 128 | Oct 23, 2026, 12:00 AM |
| mfc | media total | GLOBAL | 29 | Oct 23, 2026, 12:00 AM |
| mfc | merch added 30d | GLOBAL | 0 | Oct 23, 2026, 12:00 AM |
| mfc | merch total | GLOBAL | 248 | Oct 23, 2026, 12:00 AM |
| niconico | episode comments | JP | 186,672 | Oct 2, 2026, 12:00 AM |
| niconico | episode mylists | JP | 32,005 | Oct 2, 2026, 12:00 AM |
| niconico | episode views | JP | 3,187,755 | Oct 2, 2026, 12:00 AM |
| oricon manga | oricon manga rank | JP | 1 | Sep 11, 2026, 12:00 AM |
| oricon manga | oricon manga weeks | JP | 2 | Sep 11, 2026, 12:00 AM |
| comments 7d | GLOBAL | 87 | Oct 2, 2026, 12:00 AM | |
| mentions 7d | GLOBAL | 2 | Oct 2, 2026, 12:00 AM | |
| score 7d | GLOBAL | 77 | Oct 2, 2026, 12:00 AM | |
| thread count | GLOBAL | 2 | Oct 2, 2026, 12:00 AM | |
| threads 7d | GLOBAL | 2 | Oct 2, 2026, 12:00 AM | |
| shikimori | completion ratio | GLOBAL | 0.28 | Oct 2, 2026, 12:00 AM |
| shikimori | member count | GLOBAL | 1,638 | Oct 2, 2026, 12:00 AM |
| shikimori | score mean | GLOBAL | 64.3 | Oct 2, 2026, 12:00 AM |
| simkl | score mean | GLOBAL | 63 | Oct 2, 2026, 12:00 AM |
| tmdb | popularity | GLOBAL | 9 | Oct 2, 2026, 12:00 AM |
| tmdb | vote count | GLOBAL | 5 | Oct 2, 2026, 12:00 AM |
| wikipedia | pageviews daily | EN.WIKIPEDIA | 47 | 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 |