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Children of the Sea (Japanese: 海獣の子供, Hepburn: Kaijū no Kodomo, lit. "marine mammal children") is a Japanese seinen manga series written and illustrated by Daisuke Igarashi, and serialized in Shogakukan's monthly seinen manga magazine Monthly Ikki. Shogakukan has collected the series into five tankōbon volumes published between July 30, 2007 and July 30, 2012.

Children of the Sea
ChildrenOfTheSea vol01 Cover.jpg
Cover of Children of the Sea volume 1 as published by Shogakukan
(Kaijū no Kodomo)
Written byDaisuke Igarashi
Published byShogakukan
English publisher
ImprintIkki Comix
MagazineMonthly Ikki
English magazine
Original runFebruary 2006November 2011
Volumes5 (List of volumes)
Anime film
Children of the Sea
Directed byAyumu Watanabe
Produced byEiko Tanaka
Music byJoe Hisaishi
StudioStudio 4 °C
Licensed by
ReleasedMay 19, 2019 (2019-05-19) (Tokyo)[2]
June 7, 2019 (2019-06-07) (Japan)[3]
Runtime111 minutes[4]
Wikipe-tan face.svg Anime and Manga portal

The manga is licensed in North America by Viz Media, who serialized it online at and released the first tankōbon volume on July 21, 2009 and the second on December 15, 2009.

A Japanese animated film adaptation by Studio 4 °C premiered on May 19, 2019 in Japan.[2]


Ruka Azumi (安海琉花, Azumi Ruka)
Voiced by: Mana Ashida[5]
Umi ()
Voiced by: Hiiro Ishibashi[5]
Sora ()
Voiced by: Seishū Uragami[5][6]
Anglade (アングラード, Angurādo)[7]
Voiced by: Win Morisaki[5]
Masaaki Azumi (安海正明, Azumi Masaaki)
Voiced by: Goro Inagaki[5][8]
Kanako Azumi (安海加奈子, Kanako Azumi)
Voiced by: Yu Aoi[5][9]
Sensei (先生)
Voiced by: Tohru Watanabe[5][10]
Jim (ジム, Jimu)[7]
Voiced by: Min Tanaka[5]
Dede (デデ)
Voiced by: Sumiko Fuji[5]



Children of the Sea is written and illustrated by Daisuke Igarashi. It was serialized in Shogakukan's seinen magazine Monthly Ikki. Shogakukan has released five tankōbon volumes so far, between July 30, 2007 and July 30, 2012.[11][12] The manga is licensed in North America by Viz Media,[13] who serialized it online at[14] and released the first tankōbon volume on July 21, 2009[15] and the second on December 15, 2009.[16]

Volume listEdit

No.Japanese release dateJapanese ISBNEnglish release dateEnglish ISBN
1 July 30, 2007[11]ISBN 978-4-091-88368-1July 21, 2009[15]ISBN 1-4215-2914-9
  • 01. "Ruka" (琉花)
  • 02. "The Day of Thunder" (神鳴りの日)
  • 03. "Hitodama" (人魂)
  • 04. "Marine Mammals"
  • 05. "Patterns" (図様)
  • 06. "Ghost of the Sea" (海の幽霊)
  • 07. "Chair" (椅子)
  • 08. "The Realm of the Sea" (水界)
2 July 30, 2007[17]ISBN 978-4-091-88369-8December 15, 2009[16]ISBN 1-4215-2919-X
  • 09. "Isana"
  • 10. "A Strong Wind at Sea"
  • 11. "Beyond the Tide"
  • 12. "Falling Rain Collecting in Pools"
  • 13. "Soaked Children"
  • 14. "Rakshasa"
  • 15. "The Last Day of the Month"
  • 16. "Takeoff"
3 June 30, 2008[18]ISBN 978-4-091-88422-0June 15, 2010[19]ISBN 1-4215-2920-3
  • 17. "Kuroshio Current"
  • 18. "Far Out at Sea"
  • 19. "Mirage"
  • 20. "Dugong"
  • 21. "Gondwana"
  • 22. "Ripples in the Wave"
  • 23. "Trap"
  • 24. "Internal Organs"
  • 25. "Sea Border"
4 July 30, 2009[12]ISBN 978-4-091-88470-1December 21, 2010ISBN 1-4215-3541-6
  • 26. "Marine Animals"
  • 27. "Pierced Body"
  • 28. "Muddied Waters"
  • 29. "Sea of the Universe"
  • 30. "Pregnancy"
  • 31. "Crucible"
  • 32. "Interception"
  • 33. "Preparation"
  • 34. "Venus"
  • 35. "Water Demon"
5 July 30, 2012ISBN 978-4-091-88590-6June 18, 2013[20]ISBN 1-4215-3848-2
  • 36. "Eyelids"
  • 37. "Birth Rite I"
  • 38. "Birth Rite II"
  • 39. "Birth Rite III"
  • 40. "Birth Rite IV"
  • 41. "Birth Rite V"
  • 42. "Iruka"


An Japanese animated film adaptation of the manga was announced by Studio 4 °C on July 16, 2018.[21] The film is directed by Ayumu Watanabe, with Kenichi Konishi as character designer, chief supervising animator and unit director and music by Joe Hisaishi. It is produced by Eiko Tanaka.[3][22] The theme song, "Umi no Yūrei" (海の幽霊, lit. "ghost(s) of the sea"), is written and performed by Kenshi Yonezu.[23][24]

The film had its world premiere on May 19, 2019[2] and was released in Japan on June 7, 2019.


Children of the Sea was nominated for the 2008 and 2009 Osamu Tezuka Cultural Prize.[25][26] Daisuke Igarashi was awarded a Japan Cartoonist Awards excellence award for drawing Children of the Sea in 2009.[27] Children of the Sea was the recipient of an Excellence Prize from the Japan Media Arts Awards at the 2009 Japan Media Arts Festival.[28][29]'s Deb Aoki commends the manga for its "vibrant, detailed artwork that takes its inspiration from nature, real people and real places" but criticizes the manga for its slow plot which "picks up the pace after a few chapters".[30] PopCultureShock's Sam Kusek comments on the interactions between the main characters, saying, "[Umi, Sora and Ruka] all share something in common, the fact that they are outsiders from the norm. Ruka is not your normal girl. As athletic as she is, her attitude and aggression towards her teammates leave her high and dry for the summer. Consistently throughout the book, people are badmouthing her as she passes them on the street. Umi and Sora are obviously outsiders due to their extreme circumstances, wearing large robes to cover a majority of their skin and having to constantly bathe in water. Sora especially has a frail constitution, spending most of the book in and out of a hospital. All three are young children, and that is shown throughout the book, but they also have a unique sense of maturity that sets them apart not only from other children but most adults."[31]

Anime News Network's Carlo Santos commends the manga for its "subtle, seamless storytelling and first-class artistry combine to form a fascinating tale of the sea" but criticizes it for "mundane events and superfluous scenes sometimes slow down the plot".[32] ICv2's Steve Bennett commends the manga for "the art is rich with photorealistic details which help to give the fantasy a solid grounding in reality, and has strong, emotionally honest characters which should make this young adult fantasy appeal to both fans of epic fantasy and contemporary teen dramas."[33] Coolstreak Comics' Leroy Douresseaux comments that he is reminded of the "1980s ecological sci-fi comic book, The Puma Blues" when reading the manga. He also commends on Igarashi's "earthy art, with its busy line work and crosshatching and unsophisticated figure drawing, grounds this series in reality, which makes the moments of enchantment all the more breathtaking." He also recommends the manga to those who liked Inio Asano's Solanin.[34]


  1. ^ "The Official Website for Children of the Sea". Viz Media. Retrieved October 28, 2017.
  2. ^ a b c "5/19(日)世界最速ワールドプレミア上映会、実施決定!". Nyūsu | Animēshon eiga Kaijū no Kodomo kōshiki saito (in Japanese). Starcast Japan. April 26, 2019. Retrieved April 29, 2019. Italic or bold markup not allowed in: |website= (help)
  3. ^ a b "Animēshon eiga Kaijū no Kodomo kōshiki saito" アニメーション映画「海獣の子供」公式サイト [Animation film Children of the Sea official site] (in Japanese). Children of the Sea Committee. Retrieved March 21, 2019. Italic or bold markup not allowed in: |publisher= (help)
  4. ^ "JFDB – Children of the Sea". Japanese Film Database. UniJapan. 2019. Retrieved May 29, 2019. Running Time: 111 min Italic or bold markup not allowed in: |website= (help)
  5. ^ a b c d e f g h i "Eiga anime Kaijū no Kodomo" (in Japanese). allcinema. Retrieved 21 March 2019.
  6. ^ "海獣の子供:窪塚愛流が変声期で出演辞退 代役に浦上晟周 森崎ウィン、田中泯も". MantanWeb. Mantan. April 16, 2019. Retrieved April 16, 2019.
  7. ^ a b Komatsu, Mikikazu (April 16, 2019). "Airu Kubozuka Has Left Children of the Sea Film due to Voice Change". Crunchyroll. Retrieved May 1, 2019.
  8. ^ "Goro Inagaki". Atarashii Chizu. Retrieved 21 March 2019. Goro Inagaki
  9. ^ "Yu Aoi Official Web Site" (in Japanese). Itoh Company. Retrieved 21 March 2019. Yu Aoi
  10. ^ Watanabe, Tohru. "Tohru Watanabe" (in Japanese). Facebook. Retrieved 21 March 2019. Tohru Watanabe
  11. ^ a b 海獣の子供 / 1 (in Japanese). Shogakukan. Retrieved 2009-07-26.
  12. ^ a b 海獣の子供 / 4 (in Japanese). Shogakukan. Retrieved 28 November 2009.
  13. ^ "Ōoku, Detroit Metal City, More New Manga Listed for Viz". Anime News Network. 2008-11-21. Retrieved 2009-07-26.
  14. ^ "Children of the Sea". Viz Media. Retrieved 2009-07-27.
  15. ^ a b "Children of the Sea , Vol. 1". Viz Media. Retrieved 2009-07-26.
  16. ^ a b "Children of the Sea , Vol. 2". Viz Media. Retrieved 2009-07-26.
  17. ^ 海獣の子供 / 2 (in Japanese). Shogakukan. Retrieved 2009-07-27.
  18. ^ 海獣の子供 / 3 (in Japanese). Shogakukan. Retrieved 2009-07-26.
  19. ^ " Children of the Sea, Vol. 3". Retrieved 2010-11-07.
  20. ^ " - Children of the Sea, Volume 5". VIZ Media. Retrieved 2013-04-22.
  21. ^ Rafael Antonio Pineda (2018-07-16). "Children of the Sea Manga Gets Anime Film by Studio 4°C". Anime News Network. Retrieved 2018-07-16.
  22. ^ Ressler, Karen (2019-02-26). "Children of the Sea Film's Teaser Previews Joe Hisaishi's Music". Anime News Network. Retrieved 2019-02-26.
  23. ^ "主題歌が米津玄師の新曲「海の幽霊」に決定!". Nyūsu | Animēshon eiga Kaijū no Kodomo kōshiki saito (in Japanese). Starcast Japan. April 24, 2019. Retrieved May 2, 2019. Italic or bold markup not allowed in: |website= (help)
  24. ^ Sherman, Jennifer (May 9, 2019). "Children of the Sea Film's 2nd Trailer Previews Kenshi Yonezu Song". Anime News Network. Retrieved May 9, 2019.
  25. ^ "12th Tezuka Osamu Cultural Prize Nominees Announced". Anime News Network. 2008-03-14. Retrieved 2009-07-26.
  26. ^ "13th Tezuka Osamu Cultural Prize Nominees Announced". Anime News Network. 2009-03-05. Retrieved 2009-07-26.
  27. ^ "38th Japan Cartoonist Awards Announced". Anime News Network. 2009-05-08. Retrieved 2009-07-26.
  28. ^ "Summer Wars, Vinland Saga Win Media Arts Awards". Anime News Network. 2009-12-03. Retrieved 2009-12-03.
  29. ^ "Excellence Prize - Children of the Sea". Japan Media Arts Plaza. Archived from the original on 4 April 2010. Retrieved 3 December 2009.
  30. ^ Aoki, Deb. "Children of the Sea Volume 1". Retrieved 2009-07-26.
  31. ^ Kusek, Sam (June 27, 2009). "Children of the Sea, Vol. 1". Manga Recon. PopCultureShock. Archived from the original on July 3, 2010. Retrieved 2009-07-26.
  32. ^ Santos, Carlo (June 22, 2009). "Children of the Sea GN 1 – Review". Anime News Network. Retrieved 2009-07-26.
  33. ^ Bennet, Steve (March 23, 2009). "Review of Children of the Sea Vol. 1 (Manga)". ICv2. Retrieved 2009-07-26.
  34. ^ Douresseaux, Leroy (July 15, 2009). "Children of the Sea: Volume 1". ComicBookBin. Toon Doctor. Retrieved 2009-07-26.

External linksEdit