Aoi Umi no Tristia

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Alternative Titles

Synonyms: Tristia of the Deep Blue Sea
Japanese: 蒼い海のトリスティア


Type: OVA
Episodes: 2
Status: Finished Airing
Aired: Apr 23, 2004 to Jul 23, 2004
Producers: None found, add some
Licensors: None found, add some
Studios: ufotable
Source: Visual novel
Genre: AdventureAdventure
Theme: MechaMecha
Duration: 27 min. per ep.
Rating: PG - Children


Score: 5.611 (scored by 17141,714 users)
1 indicates a weighted score.
Ranked: #113252
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #9170
Members: 3,923
Favorites: 2

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Ranked #11325Popularity #9170Members 3,923
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Episodes: /2


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)


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Characters & Voice Actors



Opening Theme

Apple Music
Amazon Music
Youtube Music
"Do your dream" by Sakura Nogawa

Ending Theme

"A Happy Life" by Yukihide Takekawa


Nov 22, 2008
Mixed Feelings
Aoi Umi no Tristia certainly would appear to have a lot things going for it, upon just looking at the picture you might feel its a cute shoujo with lovable characters and a heartwarming story, and while it does indeed have it in this two episode OVA, its a shame that it does it so by the book!

Story: 5/10
Well there isn't much to it, basically it has Nanoca (our young heroine) fighting battle after battle by way of her own huge mecha called Golems which she herself created, and at this point I was instantly reminded of Pokemon and Yu-Gi-Oh, but with robots! Which honestly, ...
Jun 25, 2023
Mixed Feelings
This is an OVA based on the Deep-Blue series game 'Tristia of the Deep-Blue Sea'. I'm frankly baffled as to how such an obscure series managed to get any animation at all but the mid-2000s were a strange time. I have played some of the games so I can comment that this OVA does a pretty good job at conveying the basic jist and tone of the game, but it's definitely not a stellar anime overall. It really depends on whether your love of mid-2000s anime tropes dialed up to 11 in some bizarre comedy of a mecha anime fights through. Deep-Blue is a bit ...
Mar 18, 2009
Aoi Umi no Tristia (Tristia of the Deep Blue Sea) is another example of a series that just throws together cute girls, mechs, explosions, fan service and hopes enough suckers will watch it. Consider myself hoodwinked.

The plot for Tristia starts off simple enough, with a domestic Golem (mecha) competition. Yeah it’s what it sounds like, robots doing housework... exciting huh? Of course it soon turns into mecha battles between rivals Nanoca and Panavia. Panavia seems to be bent only because she finishes second in every inventor contest the two of them entered. There is a mysterious man seemingly behind Panavia ...

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Recent Forum Discussion

Slice of Life, Magical Girl, and Mecha, Oh my!
callmetheBigD - May 9, 2012
2 repliesby syncrogazer »»
Jun 1, 2019 4:17 PM
Poll: Aoi Umi no Tristia Episode 2 Discussion
ReaperCreeper - Jan 23, 2018
2 repliesby syncrogazer »»
Jun 1, 2019 4:08 PM