Kaijuu no Kodomo

Children of the Sea

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Alternative Titles

Synonyms: The Sea Monster's Children
Japanese: 海獣の子供
English: Children of the Sea
German: Children Of The Sea
Spanish: Los Niños del Mar
French: Les Enfants de La Mer
More titles


Type: Movie
Episodes: 1
Status: Finished Airing
Aired: Jun 7, 2019
Producers: None found, add some
Licensors: GKIDS
Studios: Studio 4°C
Source: Manga
Genres: Award WinningAward Winning, DramaDrama, MysteryMystery, SupernaturalSupernatural
Demographic: SeinenSeinen
Duration: 1 hr. 51 min.
Rating: PG-13 - Teens 13 or older


Score: 7.201 (scored by 3493834,938 users)
1 indicates a weighted score.
Ranked: #31172
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #1917
Members: 105,075
Favorites: 816

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Ranked #3117Popularity #1917Members 105,075
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Ruka Azumi's ordinary summer vacation revolves around spending all her time on the handball court to avoid her only housemate, her alcoholic mother. When an incident at practice leads to Ruka's exclusion from the handball team, she is forced to find other outlets to enjoy herself, eventually winding up at the aquarium where her father works. There, she meets Umi, a mysterious boy raised by dugongs who is being kept at the aquarium in order to research his strange water-dependent body.

Ruka and Umi become fast friends, and the pair is soon joined by Sora, Umi's brother who also has an unusual relationship with the ocean. Together, the trio explore a dazzling undersea world while learning about a peculiar "festival" that all sea creatures around the world are preparing for.

[Written by MAL Rewrite]


Winner of the Grand Prize Award on the 23rd Japan Media Arts Festival.

Related Anime

Characters & Voice Actors

Cusack, Jim

Tanaka, Min


Fuji, Sumiko

Azumi, Masaaki

Inagaki, Gorou

Azumi, Kanako

Aoi, Yuu


Kasamatsu, Kouji
Sound Director
Kino, Hanasaki


Opening Theme

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Ending Theme


May 5, 2023
"At all times, we are connected by a place deep inside us. The most important promise isn't made with words".

I really enjoyed this movie, both visually and story-wise, so in short, do I recommend Children of the Sea aka Kaijuu no Kodomo? YES.
It was a new adventure in a new style, I think. It was one of the best 3D movies I've ever seen on the animation level. The animation was on point though in some scenes you can notice the CGI easily. Where in most of the movie I thought it was a Hand-drawing style. And it turned out to be that the producers ...
Sep 9, 2023
Mixed Feelings
This is a tough one to review. First off it's clear that the animation and artstyle is both beautiful and thoughtfully executed. However, the difficulty in reviewing Kailua no Kodomo mainly comes from its story. Here's a more precise explanation:

Animation (8): A beautiful mix of 3D elements that don't feel too out of place and a well thought out charadesign makes this movie one of the prettiest ones to hit theatres the year of its release.

Story (4): This is where it's really hard to have a concise opinion, at first I felt like maybe I didn't understand the thought process behind a lot of the ...
Mar 28, 2023
Kaijuu no Kodomo is the personification of a teenager smoking weed for the first time and spilling into incoherent babble about life and the universe. "Duuuuuuuuuuuuuude the seas and the stars are one... We're all, like, totally connected." Without any hint of self-awareness, prattling on about romantic-sounding yet entirely vacuous germs of ideas about "listening to the song on the winds," "we're all made of the same matter... whoaaaaaa..." and other such flowery, inconsequential drivel. The characters and plot are superficially there to laboriously drone on about shallow musings on life and the universe. What little there is in terms of ...

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Recent Forum Discussion

Poll: Kaijuu no Kodomo Episode 1 Discussion ( 1 2 )
Klonoa7H - Oct 14, 2019
65 repliesby Wisliy »»
Aug 4, 6:40 AM
Underrated anime?
YoMadrix - Oct 14, 2021
18 repliesby Zerephiehell »»
Feb 3, 2022 3:09 PM
Xeiros - Feb 26, 2019
20 repliesby saeran_choiiii »»
Jun 11, 2019 12:51 AM
It’s time to ditch the text file.
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