Aliases
Tristia of the Deep Blue Sea, Tristia - Błękitna Wyspa, Aoi Umi no Tristia, 蒼い海のトリスティア, Tristia of the Deep-Blue Sea
SPRING 2004OVA
Part of this franchise
concluded
Announced
In production
Releasing
Completed
An ocean city, Tristia.
Tristia used to be prospering playing an important role of the maritime trade, and it was as beautiful as to be praised as "marine jewelry".
However, that was a long time ago.
The attack of the dragons deprived the city of their original brightness. The people in Tristia worked hard to reconstruct their city, but everything they did went wrong, and the city became desolated on the contrary.
At the end of their hope, they asked a Great Artisan for the recovery of the city, Prospero Flanka. Prospero was a legendary inventor who had revived cities that otherwise would have been ruined.
The long-awaited day came when the Great Artisan Prosper arrived in the city... However, it was only one girl who stood at the port of the city. Prospero sent his grand daughter, Nanoka, for him.
(Source: AnimeNfo)
Tristia used to be prospering playing an important role of the maritime trade, and it was as beautiful as to be praised as "marine jewelry".
However, that was a long time ago.
The attack of the dragons deprived the city of their original brightness. The people in Tristia worked hard to reconstruct their city, but everything they did went wrong, and the city became desolated on the contrary.
At the end of their hope, they asked a Great Artisan for the recovery of the city, Prospero Flanka. Prospero was a legendary inventor who had revived cities that otherwise would have been ruined.
The long-awaited day came when the Great Artisan Prosper arrived in the city... However, it was only one girl who stood at the port of the city. Prospero sent his grand daughter, Nanoka, for him.
(Source: AnimeNfo)
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
14.0
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 13 hours ago
Top reasons
- Committee renewal track record - Lead committee members (ufotable) have a smoothed catalogue continuation rate of 25%, above the catalogue average of 14%
- Merchandise catalogue breadth (MFC) - 123 merch items catalogued (20 figures)
- Titles like this rarely return - 22 years with no new entry: of OVAs and specials (first entries) in that position, under 1% got a new season or film within 10 years
Runway
Unknown
Source runway is unclear, so feasibility is treated as unknown.
Financial & Commercial36
Production Feasibility24
Audience Reception28
Strategic Priors52
Fandom Engagement40
CourScore history
CourScore over time
Last analysedOct 28, 2026, 06:19 AM
Next scheduledin 11 hours
Renewal FAQ
Aoi Umi no Tristia renewal questions
Common questions about this title's renewal prospects, answered by Courcast's daily analysis.
- Is Aoi Umi no Tristia getting a new season?
- According to Courcast's latest analysis, Aoi Umi no Tristia has a 14/100 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 Aoi Umi no Tristia be renewed?
- Aoi Umi no Tristia currently scores 14 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 Aoi Umi no Tristia's renewal probability?
- Aoi Umi no Tristia's CourScore is 14 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 | 49 | Oct 2, 2026, 12:00 AM |
| anilist | favorites | GLOBAL | 3 | Oct 2, 2026, 12:00 AM |
| anilist | popularity | GLOBAL | 1,385 | Oct 2, 2026, 12:00 AM |
| anilist | trending | GLOBAL | 0 | Oct 2, 2026, 12:00 AM |
| ann | rating | GLOBAL | 5.87 | Oct 11, 2026, 12:00 AM |
| crunchyroll | episode count | GLOBAL | 3 | Sep 11, 2026, 12:00 AM |
| crunchyroll | episode dislikes | GLOBAL | 358 | Sep 11, 2026, 12:00 AM |
| crunchyroll | episode likes | GLOBAL | 2,848 | Sep 11, 2026, 12:00 AM |
| crunchyroll | series available | GLOBAL | 1 | Sep 11, 2026, 12:00 AM |
| google trends | interest daily | GLOBAL | 0 | Sep 10, 2026, 12:00 AM |
| google trends | interest weekly | GLOBAL | 0 | Aug 30, 2026, 12:00 AM |
| kitsu | member count | GLOBAL | 558 | Oct 2, 2026, 12:00 AM |
| kitsu | rating rank | GLOBAL | 12,431 | Oct 2, 2026, 12:00 AM |
| kitsu | score mean | GLOBAL | 57.63 | Oct 2, 2026, 12:00 AM |
| mal | chapters total | GLOBAL | 7 | Sep 10, 2026, 12:00 AM |
| mal | completed | GLOBAL | 2,439 | Oct 2, 2026, 12:00 AM |
| mal | members | GLOBAL | 4,404 | Oct 2, 2026, 12:00 AM |
| mal | plan to watch | GLOBAL | 1,514 | Oct 2, 2026, 12:00 AM |
| mal | source members | GLOBAL | 99 | Sep 10, 2026, 12:00 AM |
| mal | source status code | GLOBAL | 3 | Sep 10, 2026, 12:00 AM |
| mal | volumes total | GLOBAL | 1 | Sep 10, 2026, 12:00 AM |
| mal | watching | GLOBAL | 198 | Oct 2, 2026, 12:00 AM |
| mangadex | source status code | GLOBAL | 3 | Oct 26, 2026, 12:00 AM |
| mangadex | volumes total | GLOBAL | 1 | Oct 26, 2026, 12:00 AM |
| mangaupdates | bayesian rating | GLOBAL | 6.3 | Oct 26, 2026, 12:00 AM |
| mfc | entry likes | GLOBAL | 10 | Oct 23, 2026, 12:00 AM |
| mfc | figures total | GLOBAL | 20 | Oct 23, 2026, 12:00 AM |
| mfc | goods total | GLOBAL | 86 | Oct 23, 2026, 12:00 AM |
| mfc | media total | GLOBAL | 17 | Oct 23, 2026, 12:00 AM |
| mfc | merch total | GLOBAL | 123 | Oct 23, 2026, 12:00 AM |
| niconico | episode comments | JP | 15,353 | Oct 2, 2026, 12:00 AM |
| niconico | episode mylists | JP | 2,906 | Oct 2, 2026, 12:00 AM |
| niconico | episode views | JP | 291,366 | Oct 2, 2026, 12:00 AM |
| comments 7d | GLOBAL | 34 | Sep 11, 2026, 12:00 AM | |
| mentions 1d | GLOBAL | 1 | Jul 11, 2026, 12:00 AM | |
| mentions 7d | GLOBAL | 1 | Sep 11, 2026, 12:00 AM | |
| score 7d | GLOBAL | 9 | Sep 11, 2026, 12:00 AM | |
| thread count | GLOBAL | 1 | Sep 11, 2026, 12:00 AM | |
| threads 7d | GLOBAL | 1 | Sep 11, 2026, 12:00 AM | |
| shikimori | completion ratio | GLOBAL | 0.5 | Oct 2, 2026, 12:00 AM |
| shikimori | member count | GLOBAL | 673 | Oct 2, 2026, 12:00 AM |
| shikimori | score mean | GLOBAL | 55.9 | Oct 2, 2026, 12:00 AM |
| simkl | score mean | GLOBAL | 56 | Oct 2, 2026, 12:00 AM |
| tmdb | popularity | GLOBAL | 1.51 | Oct 2, 2026, 12:00 AM |
| tmdb | vote count | GLOBAL | 0 | Oct 2, 2026, 12:00 AM |
| wikipedia | pageviews daily | EN.WIKIPEDIA | 0 | Oct 26, 2026, 12:00 AM |
| youtube | channel views total | GLOBAL | 17,715 | Jun 22, 2026, 12:00 AM |
| youtube | subscribers total | GLOBAL | 349 | Jun 22, 2026, 12:00 AM |
| youtube | uploads 30d | GLOBAL | 25 | Jun 17, 2026, 12:00 AM |
| youtube | uploads 7d | GLOBAL | 25 | Jun 17, 2026, 12:00 AM |
| youtube | views 30d | GLOBAL | 13,579 | Jun 17, 2026, 12:00 AM |
| youtube | views 7d | GLOBAL | 13,579 | Jun 17, 2026, 12:00 AM |