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Trepanation is the procedure of drilling a hole in the skull. It is said to increase the blood circulation and improve pressure inside the skull. It is also said to bring out a person's sixth sense, the ability to use ESP, see ghosts, move objects with one's mind. This is speculative fiction based on the concept of trepanation.


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Latest Release(s)
v.14-15 (end) by Illuminati-Manga (1271d ago)
v.13 by Illuminati-Manga (1469d ago)
v.12 by Illuminati-Manga (1526d ago)
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Status in Country of Origin
15 Volumes (Complete)
2 Volumes (Bunkoban - Ongoing)

Completely Scanlated?

Anime Start/End Chapter

User Reviews

2 topics, 14 posts
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User Rating
Average: 8.4 / 10.0 (730 votes)
Bayesian Average: 8.32 / 10.0
 25% (179 votes)
 26% (190 votes)
 26% (191 votes)
 12% (89 votes)
 6% (43 votes)
 2% (11 votes)
 1% (9 votes)
 1% (9 votes)
 0% (2 votes)
 1% (7 votes)

Last Updated
June 9th 2015, 9:33pm PST



Category Recommendations





Original Publisher

Serialized In (magazine)
Big Comic Spirits (Shogakukan)

Licensed (in English)

English Publisher

Activity Stats (vs. other series)
Weekly Pos #662 increased(+90)
Monthly Pos #892 increased(+115)
3 Month Pos #930 decreased(-133)
6 Month Pos #840 decreased(-42)

List Stats
On 1341 reading lists
On 1178 wish lists
On 1071 completed lists
On 89 unfinished lists
On 345 custom lists

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Forum Posts
I have a question 1639 days, 11 hours, 59 minutes ago
Hiatus OVER 2174 days, 19 hours, 36 minutes ago

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User Comments [ Order by usefulness ]

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Rating: 9.0 / 10.0
by irelia
January 19th, 2013, 8:32pm
Oh wow, awesome..The trepanation, human natures, Nakoshi's visual when using the power, psychological explanations. This manga really interesting..
Spoiler (mouse over to view)
Warning for you who can't endure yaoi things, this manga contain yaoish scene on some part..

... Last updated on January 21st, 2013, 12:19am
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One of the best psychological manga   
Rating: N/A
by emkat
December 31st, 2012, 2:55pm
At around volume 9 it got bad because it seemed like he was just trying to reduce the drawing workload. Then it picked back up again. The tone of the manga changed completely after he met the teenage girl, and then it just got different and weird. The themes were good, but I would have rather had him stay on that storyline instead.

His comment in volume 11 about the forms was a good monologue. The story changes from a trying to solve homunculi concept to him trying to find himself out. It makes the story deeper but less interesting.

I like how he gets called out for his self-pity too. He became what he didn't like about others, but he was self-righteous about it. Best moment in the series.

The ending is also absurdly hilarious

... Last updated on December 31st, 2012, 2:59pm
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Rating: 9.9 / 10.0
by whitespade
September 11th, 2012, 8:20am
this manga produce a lot of emotion in me. revulsion, disgust, mirth, alarmed, frightened, depression, melancholy etc. and enlightenment. that's the best part about this manga, enlightening me about myself.

i can't really further describe this manga in terms of plot, characters, art and other literary device, though it excel in any and every way they cease to matter as they are just the vehicle to deliver those emotions and those revelations straight to the readers.

just read this, and you will understand.
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page turning!   
Rating: 8.7 / 10.0
by countingwounds
June 25th, 2012, 6:09pm
if nothing else, it kept me so very interested. the entire concept, the characters, (especially Ito! he was incredibly interesting and such a good character) the situations... the art... the psychology behind everything, the homunculi... it flies by without using too many or too few words. yamamoto uses his characters a lot to tell the story, and not just words, which was very pleasant.

now, my only complaint is that the story kind of plateaued somewhere in the middle... and never came back down. i felt like it was a roller coaster that built up and built up and built up and... never amounted to anything really. that's only my humble opinion though. the end was a little muddled also... i was kinda like... hmm... hmm? but it is ambiguous and goes along with the psychological theme left to interpretation by the readers. can't blame him for that - plus it fit the whole character. it left me wanting more, though, more answers and more understanding. i might need to read it again to seek that out, but we'll probably just have to fill the holes with our own speculations.

oh and another complaint, sorry - it's just really not that realistic at points... not just the homunculi, but like others have mentioned, the other character's reactions, some of the situations... it just left me a little unsure of the story. it more than made up for it, however, in other parts of the story.

the only thing i'm really, really confused on is the serial killer category...? maybe i missed something really big?! haha...

anyways, it wasn't all that twisted and horrific and gross, it was a LOT more heavy on the psychological, so if you have such reservations i'd give it a try. heck, if you're at all interested in stories that weave theories and take you on a page turning adventure (ok, not literally, more a psychological adventure mind you - he doesn't travel too far haha), give it a try!!

... Last updated on June 25th, 2012, 6:19pm
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interesting to boring to BAD   
Rating: 3.0 / 10.0
by TaoPaiPai
February 20th, 2012, 12:53pm
awful ending as expected
it started out so very interesting but started to dragg around volume 6
then the ending was just bad
its like he himself gets bored with his mangas and just dont know what to do with them
this one just suffers so much from the horrible ending[alot more than his other works]
I wont ever read another manga from this person[if he ever makes one]
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Rating: 8.0 / 10.0
by smokeesid
February 18th, 2012, 12:52am
Author shows his understanding of human psychology by fascinating depictions and the artwork compliments it. It keeps you interested most of the time because of the unique stuff in the manga.

The only two complaints I have, Firstly, he has wasted panels at places to create unnecessary stress and secondly the ending sucked. It wasn't as though the ending was badly made but it was unhappy and disturbing and there were better and more realistic options but he went for this one to create impact and an atypical ending. Nonetheless, it was worth the read

... Last updated on September 14th, 2012, 11:36pm
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Crazy Ending   
Rating: N/A
by J1nSan
February 6th, 2012, 4:15pm
The manga begins about one man and ends on the same note. The ending was disturbing and painted such a bizarre, surreal image as I read it. I haven't finished anything in a while that left me feeling the way I did after reading this. The author of Homunculus is crazy. I didn't expect this to end the way it did but am glad to see it was able to end, but I'm honestly a little unsure of what to make of the ending.
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Rating: N/A
by netwizard
November 12th, 2011, 7:57am
It started very good.. the concept of homunculus was quite attractive.
But after volume 4 or 5.. you know the plot mustn't be that much sofisticated!
I just didn't get characters motives and it seems like the author just draws whatever
he wants not concerning if the reader understands it or not.

Anyway, 2-4 volumes were very interesting!! Regret a lot it did't last long..

... Last updated on November 12th, 2011, 8:11am
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makes you wonder   
Rating: N/A
by roxslide
February 8th, 2010, 12:34am
i read this on a whim, i was looking for a gory horror at the time, and this happened to be under that genre on the site i was reading manga on. before i started readign i skimmed the reviews and read the word "homo" a few times and that made me excited with my yaoi addiction and what not but, once i started reading I was left with something much more than the dumb bulk yaoi-horror that i was expecting, something really deep and thought provoking!

once i started reading, I couldn't stop. I spent a whole day, reading 10+ volumes of this manga, i was completely absorbed. There's barely any gore but the tension set in this manga had me sitting at the edge of my seat a few times. While reading this manga, I was happy, angry, sometimes absolutely disgusted, it even made me teary eyed, once.

What I admire about this manga is, first, the original concept, the homunculus. I really like how the artist decided to interweave all the definitions of homunculus together in this story, the somatosensory homunculus, the fetus... etc. You can really tell he did his research and spent a long time mulling over this manga. Also, the way he did his characters, they are demented, unwhole people, and as readers (or more, human beings) we can relate to this in many cases, nobody is whole, everyone has their own shortcomings and complexes (though never as many complexes as the main character haha).

The only beef I have with this manga though is that... it was kind of hard to swallow, the whole seeing homunculi thing. part of me wanted to laugh it off, it was really hard to take seriously in the beginning, and still is (and was) hard to explain to my sister when she wanted to know just what was the hype about this manga that i kept on calling "genius, genius"
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So far so good   
Rating: 8.0 / 10.0
by shoujo22
October 13th, 2009, 11:17am
I also didn't expect to like this series as much as I do, but after reading the very first chapter, I was pleasntly surprised.

Most of what I'd like to say about this series has already been said, so I'll just let my thoughts on it rest for now. Once the entire series has finished, then I'll give it a solid rating and a thorough review.

So far so good!
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