★ 7.5 ONA
PUPARIA
One summer vacation, Ruka meets two boys, "Umi" and "Sora," whose upbringing contains strange and wonderful secrets. Drawn to their beautiful swimming, almost more like flying, Ruka and the adults who know them are intertwined in a complex… Read more
Storyline
One summer vacation, Ruka meets two boys, "Umi" and "Sora," whose upbringing contains strange and wonderful secrets. Drawn to their beautiful swimming, almost more like flying, Ruka and the adults who know them are intertwined in a complex mesh... Meanwhile, an unexplained anomaly is occurring all over the world: fish are disappearing. Thus begins a marine adventure of boys and girls to captivate all the senses!
Trailer
Characters & Japanese Voice Cast
Sora
Main
VA: Airu Kubozuka 
Ruka Azumi
Main
VA: Mana Ashida 
Umi
Main
VA: Hiiro Ishibashi 
Anglade
Supporting
VA: Win Morisaki 
Masaaki Azumi
Supporting
VA: Gorou Inagaki 
Kanako Azumi
Supporting
VA: Yuu Aoi 
Dede
Supporting
VA: Sumiko Fuji 
Jim Cusack
Supporting
VA: Min Tanaka 
Sensei
Supporting
VA: Tooru Watanabe 
Jean Louie
Supporting
VA: Shunsuke Hirai Touko
Supporting
VA: Marie Ooi Aki
Supporting
VA: Nagisa Kashima Similar Anime
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Frequently Asked Questions
How many episodes does Children of the Sea have?
Children of the Sea has 1 episodes.
Which studio made Children of the Sea?
Children of the Sea is produced by Studio 4°C.
Facts from AniList (also listed on MyAnimeList); streaming availability from JustWatch India. Last updated 17 October 2026, 3:52 AM IST. Episode times are Japan broadcast times shown in IST. Spotted a mistake? Write to [email protected].