Kill Ao
Kill Blue
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Kill Ao

Alternative Titles

Japanese: キルアオ
English: Kill Blue
More titles


Type: Manga
Volumes: Unknown
Chapters: Unknown
Status: Publishing
Published: Apr 17, 2023 to ?
Genres: Action Action, Comedy Comedy
Theme: School School
Demographic: Shounen Shounen
Serialization: Shounen Jump (Weekly)
Authors: Fujimaki, Tadatoshi (Story & Art)


Score: 6.791 (scored by 15831,583 users)
1 indicates a weighted score.
Ranked: #119112
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #4212
Members: 4,839
Favorites: 14

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Ranked #11911Popularity #4212Members 4,839
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Can a legendary assassin redo his life as a middle schooler?!


Kill Ao has been published digitally as an English simulpub as Kill Blue through MANGA Plus.

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Sep 23, 2023
Preliminary (7/? eps)
found about this Manga today, and it has been knocking my legs out from under me. It is absolutely one of the funniest mangas I have read.

It can also handle current topics, references, Drama and action very well without it bogging the other elements down. If there is a critique to be had it is that some things can be a little cliche and stereotypical but it's like the Author knows this and is getting the cliches out of the way quickly to get to the really good stuff sooner.

So this is a recommendation from this humble fan and reviewer.

Hope you ...
Nov 11, 2023
Preliminary (28/? eps)
Yet another Spy/Assassin series in Shounen jump, and somehow this one is also pretty solid. Whereas Spy x Family has great slice-of-life with decent action and Sakamoto Days has incredible action with good characterization, Kill Blue is more well-rounded, with pretty good action and pretty good characterization/slice-of-life. The premise sounds somewhat cliche, with a top assassin becoming a child, causing several antics. However, Kill Blue executes this premise well, using it to both for some fun comedy and self-reflection of the protagonist. In between fun battles which often involve the innate awkwardness of a middle-aged man in a child body, we get legitimate introspection from ...
Jan 21, 2024
Mixed Feelings
Preliminary (8/? eps)
I’m still very much ambivalent about this series and don’t fully understand the push Jump is giving it. The issue that has plagued it so far is that it seems to sample many genres without establishing itself well enough in any.

It has potential as a character driven story with the protagonist’s emotional growth as a middle aged man in a middle grade student’s body providing enough stimulus to keep it engaging, but unfortunately it doesn’t feel the character writing is strong enough to convince me that the character is some 40 something year old, as he often sounds like he’s just some fragile child ...

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Recent Forum Discussion

Poll: Kill Ao Chapter 49 Discussion
Red_Ranger_Wien - Apr 14
3 repliesby ReaperCreeper »»
Apr 14, 8:10 PM
Poll: Kill Ao Chapter 48 Discussion
Red_Ranger_Wien - Apr 7
5 repliesby ravingLimey »»
Apr 9, 11:17 AM
Poll: Kill Ao Chapter 47 Discussion
Red_Ranger_Wien - Mar 31
2 repliesby MegamiRem »»
Apr 7, 10:58 AM
Poll: Kill Ao Chapter 46 Discussion
Red_Ranger_Wien - Mar 24
3 repliesby Nieznajomy43 »»
Mar 24, 7:02 PM
Poll: Kill Ao Chapter 45 Discussion
Red_Ranger_Wien - Mar 17
1 repliesby MegamiRem »»
Mar 17, 8:27 AM