Coo no Sekai
Coo's World
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Coo no Sekai

Alternative Titles

Synonyms: Koo's World
Japanese: クーの世界
English: Coo's World
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Type: Manga
Volumes: 2
Chapters: 9
Status: Finished
Published: Nov 25, 1999 to Nov 25, 2000
Genres: Adventure Adventure, Drama Drama, Supernatural Supernatural
Demographic: Seinen Seinen
Serialization: Afternoon
Authors: Oda, Hideji (Story & Art)


Score: 7.091 (scored by 445445 users)
1 indicates a weighted score.
Ranked: #76562
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #9680
Members: 1,835
Favorites: 18
Ranked #7656Popularity #9680Members 1,835
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Volumes: /2
Chapters: /9


Seventh grader Hayashi Renei is troubled by a strange dream: Her dead brother - killed in an automobile accident - comes back to life as Coo. The dream comes again the following night and then every night thereafter. Coo's world is a cruel one - crueler than the real world, even - with its own share of pain, suffering and sadness. Renei is searching for her house with her brother and others whom she meets in Coo's world so that she can return to reality and the land of the living...

(Source: ANN)


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Aug 15, 2019
Coo no Sekai is beautiful, scary, heartwarming and absurd. It reads more like a graphic novel and a children's book than a typical manga. Renei has weird sequential dreams every night, where she meets her deceased brother. She is taken to a dreamworld filled with fantastical creatures. I must say, the fantasy is a bit more on the absurd and demented side, which is probably why this is labeled seinen. But I would think of this more as a challenging children's book or for young adults. There's kind of "adult" content, but nothing a 11-12 year old can't handle and it definitely has it's place ...

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