Ajin (Ajin: Demi-Human) | Manga

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Japanese: 亜人

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Information

Type: Manga

Volumes: 17

Chapters: 84

Status: Finished

Published: Jul 6, 2012 to Feb 5, 2021

Genres: Action, Horror, Mystery, Supernatural

Theme: Gore

Demographic: Seinen

Serialization: good! Afternoon

Authors: Sakurai, Gamon (Story & Art), Miura, Tsuina (Story)

Statistics

Score: 8.01¹ (scored by 53,730 users)

¹ indicates a weighted score.

Ranked: #769²

² based on the top manga page. Please note that 'R18+' titles are excluded.

Popularity: #85

Members: 153,429

Favorites: 4,784

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8.01

Ranked #769Popularity #85Members 153,429

Mangagood! AfternoonSakurai, Gamon (Story & Art), Miura, Tsuina (Story)

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Volumes: /17

Chapters: /84

Ajin: Demi Human

Volume 1
$7.99

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Synopsis

Seventeen years ago, mysterious immortal soldiers known as divine warriors appeared on the battlefields of Africa. These life forms later became known as Ajin, or demi-humans, and were considered to be one of the greatest discoveries of mankind. The government declared their existence to be compatible with humans; however, it is rumored that they instead offer bounties for captured Ajin to secretly perform inhumane experiments on these rare beings.

Kei Nagai, an apathetic high school student, is studying to become a doctor and only wishes to live a normal life. However, this simple dream is shattered after he suddenly gets into a deadly traffic accident. Revived at the scene, he is immediately labeled as an Ajin by bounty-hungry witnesses. Unable to understand his immortality or prove his innocence, he starts to live his life on the run and fights for survival. He barely escapes the government's reach when a group of anarchistic Ajin contacts Kei, asking him to join their forces to retaliate against the government. But who is Kei's real enemy, and which side will he take when it comes down to humans versus Ajin?

[Written by MAL Rewrite]

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BackgroundIn 2013, Sakurai Gamon stated on his blog that he would continue working on Ajin alone from volume two onward. The reason for co-author Miura Tsuina's withdrawal was not given.

Ajin was published in English as Ajin: Demi-Human by Vertical Inc. from October 14, 2014, to December 14, 2021, and as omnibus volumes since October 29, 2024. The series was published in Spanish by Norma Editorial from October 29, 2015, to May 27, 2022; in German by Egmont Manga from June 5, 2015, to July 1, 2021; in Polish by Studio JG from April 5, 2016, to January 17, 2022; in Brazilian Portuguese by Panini Comics from February 25, 2016, to September 10, 2021; in Italian by Edizioni Star Comics from May 9, 2015, to November 10, 2021; and in Russian by XL Media from October 2017 to May 2023.

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Characters

Nagai, Kei

Main

Nakano, Kou

Main

Satou

Supporting

Kaito

Supporting

Shimomura, Izumi

Supporting

Tosaki, Yuu

Supporting

Ogura, Ikuya

Supporting

Tanaka, Kouji

Supporting

Nagai, Eriko

Supporting

Nakamura, Shinya

Supporting

Reviews

Jul 17, 2025

weeaboomc

Recommended

Have you ever thought about how to stop something that never dies. Well, Ajin is the epitome of that thought. Ajin at its core, is a short length battle shonen manga. It is similar in length to say, a romance manga, and that means it has a lot to cover to especially to flesh out the world. And Ajin does this by making the time frame of the plot incredibly short. The whole plot runs its course in the span of 3 around months. And as such it makes the series feel like it's in this tightly compressed war. The art and pacing accompanied with ...

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Dec 7, 2025

Cowcannon

Mixed Feelings

Ajin is incredibly cool. It looks good, is fast paced. There is a gradual progression of stakes and tension. Its story is well written and thought out. However, Ajin is also incredibly generic.

There are no novel ideas, messages here. No well written characters really. Everyone is black and white, their arcs are linear, if they have any. I suppose Tosuke's character's the only one that has anything going on.

The story waves around some lofty thoughts about morality, society but none of these ideas are actually developed enough to say anything. The story doesn't really take a firm stance in any meaningful way. In the end ... the story isn't about anything. But not every story needs to be... Some stories are just cool. This is Ajin. FPS video games in real life. And during it's short run the manga doesn't run out of fresh ideas, we are constantly surprised by Sato.

One caveat I had is that there is a lot of plot armor around Sato. Yes he is immortal but taking down 500 (iirc) military personnel is a bit of a stretch. Also the story conviniently ignores almost all riot control equipment. Tear gas, rubber bullets, stun grenades, tasers, acoustic devices, water cannons, dogs. And tear gas would be all you need really. Get your guys in masks, deploy tear gas everywhere, shoot the mask off of Sato, he revives but can't see for shit. Get close, tase him and you are done...?
Also there is a lot of weapons that you don't see in riot control because the damage is permanent. I'm talking: lasers that blind target, acoustic devices that deafen target, high energy bean bags that break bones but don't instantly kill target.
In heavily protected areas you could use booby traps. Also melee weapons. Riot gear and start breaking arms with batons, immobilize with spears. Just overcome with sheer mass.
And you could use lethal weapons that take time to kill, like a nerve gas, shrapnel.

Here is a scenario anyone could've come up with. If you lock the ajin in an area where you can continously deploy some sort of an immobilizing gas, lets say a concrete room with vents (there are 3 scenarios in the manga where such circumstances arose). You put a couple of heavily armored personnel with gas masks, riot shields and a water cannon (or sprinklers, which do NOT run out) in said room. Then you give those people rubber guns that they use to immobilize Sato.
Oh but he can revive and move around and shoot and... but NO because rubber guns actually transfer the energy into the body. If you have a continous barrage of bludgeoning projectile he literally can't move. You could also use a water cannon, that kinda fixes all of your problems with IBMs as well. There is no way that Sato or his IBM could move under the constant pressure of a water gun.
You do this until you are reasonably sure that he has no way of killing himself, then you tase him, sleeping dart him, or just let the gas that is in the room do it's job.
Yes technically IBMs could prove an issue, but we know they aren't much stronger than normal humans, we see that they can be temporarily immobilized with a heavy caliber gun or rubber bullets.

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Jan 10, 2023

PixelB

Not Recommended

Preliminary (25/84 eps)

Ajin is pretty trash.

Actually, some themes and and some of the characters could have been good, or potentially great, but inevitably, the author wasn't able to balance anything properly and the result is generic "hero" BS when all things are said and done.

We have the themes of government entity vs the supernatural. Good vs evil. How do you quantify morality? If aliens only looked human, would you consider them human? If alien-looking humans had the same emotions as human, would you consider them human? While definitely not exactly unique, the story could have been good enough. Anything would have been insightful into an otherwise ...

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Poll: Ajin Chapter 86 Discussion G_Spark233 - Feb 4, 2021	38 replies	by ScarRufus »» Nov 9, 2025 12:33 PM
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