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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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Associated Names

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Latest Release(s)
v.14-15 (end) by Illuminati-Manga over 6 years ago
v.13 by Illuminati-Manga over 7 years ago
v.12 by Illuminati-Manga over 7 years ago
Search for all releases of this series

Status in Country of Origin
15 Volumes (Complete)
10 Volumes (Bunkoban)

Completely Scanlated?

Anime Start/End Chapter

User Reviews

2 topics, 14 posts
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User Rating
Average: 8.3 / 10.0 (859 votes)
Bayesian Average: 8.24 / 10.0
 23% (199 votes)
 27% (234 votes)
 27% (229 votes)
 11% (98 votes)
 6% (52 votes)
 2% (15 votes)
 1% (11 votes)
 1% (11 votes)
 0% (2 votes)
 1% (8 votes)

Last Updated
October 9th 2018, 4:14am PST



Category Recommendations





Original Publisher

Serialized In (magazine)
Big Comic Spirits (Shogakukan)

Licensed (in English)

English Publisher

Activity Stats (vs. other series)
Weekly Pos #440 increased(+84)
Monthly Pos #736 increased(+2)
3 Month Pos #1083 increased(+38)
6 Month Pos #1171 increased(+224)
Year Pos #1293 decreased(-47)

List Stats
On 1402 reading lists
On 1342 wish lists
On 1386 completed lists
On 102 unfinished lists
On 398 custom lists

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Forum Posts
I have a question over 7 years ago
Hiatus OVER over 9 years ago

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User Comments [ Order by usefulness ]

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Weird but absolutely great   
Rating: 9.5 / 10.0
by Noburo
July 22nd, 2017, 9:55am
This is one of the few series, if not the only, that I don't know what I feel about how to feel about. The ending was the most I say that in a good way. But this manga, in simple terms, is very odd. It very much earns the psychological/mature genre tags. Be warned, the ending is,,, interestingly bittersweet, if you will.
If you wind up reading this, also be warned that you will fill like you're on an acid trip. It can get weird, very weird. Even weirder when taken out of context. This manga also deals with highly relevant issues such as transgenderism, depression, and more.
Its a very good read that really deserves more love, so I highly recommend giving it a shot.
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Amazing, but real mess   
Rating: 9.0 / 10.0
by Fhighlander
August 21st, 2015, 8:53am
After reading Koroshiya Ichi, I thought this mangaka couldn't dig deeper in the psychological gender. Fortunately, I've been wrong...

As someone said, this manga is a road to self enlightenment. Sometimes you want to be important to someone but you give enough credit to yourself. Everytime the MC sees another Homunculus he starts to realize his own inner demons.

Spoiler (mouse over to view)
The ending wasn't all bad, but I hoped would be somehow light hearted since the MC had some huge mental issues and he had suffered a lot. When Nanako died because of him I thought he would kill himself but apparently he just resumed his quest to find someone who would see his heart.

Anyway, it's a really alluring manga, but the ending left a bitter taste to me.
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Rating: 8.0 / 10.0
by Serendipity_
August 10th, 2015, 3:32pm
Wow...this manga sure was messed up, in a good way. The story was original, but like many others here I didn't get the meaning? I mean, what WAS the meaning of this manga? Was it that all humans are liars and assholes? That you should be true to yourself? That you shouldn't do plastic-operation because you will end up homeless? Every time I thought I had it figured out, I got mindfu*ked and had to rethink my impression of the story all over again.

Honestly though, I didn't like the main character. He was a whiny egoistic asshole. Enough said.

I liked the Ending, it was fitting. So a +1 point for that.

... Last updated on August 19th, 2015, 2:21pm
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It was great up until the end.   
Rating: N/A
by weltall2
July 13th, 2015, 4:30pm
I love mangas and I feel that they are better than anime in many ways, but it is easier to watch rather than read, obviously. I would say that the atmosphere in anime is better, but manga many times draw me in. Now why I said that.. it has been a really long time since a manga made me read nonstop from beginning to the end. It is so rare to find manga's and I started reading after a guy suggested it. But I literally started reading it today (Well kind of yesterday since it is 2am now that I am posting, but you know what I mean) and finished it. I am not sure how I could describe it... truthfully with this manga 1 picture can result with 1000 words. I highly suggest it to everyone, at least up to the point he starts seeing things.

A lot of scenes and moments are disturbing, so if you are a closed mind person I suggest to skip it. It would make you feel unpleasant a lot of times.

I do want to though point out something about the ending that will be a spoiler for anyone that will see it so... if you do not want to see it, don't. I just want to express about not expecting this.
Spoiler (mouse over to view)
I expected a better ending and I am not talking particularly about a happy ending. Actually with such a story I did not expect a happy ending at all. In the end he ends losing his mind after he finds his supposedly real self. The end was nice to be honest but felt quite unrewarding. Like you read a story of a man struggling to achieve something and as soon as he gets 1 step away from realizing his goal, he dies. (PS: The guy does not die).

It is a shame the ending felt so unrewarding (to me), but then again it was ok and an acceptable ending. I would by no means call this a bad ending.The ending though is the only reason it does not get a 10/10 since the ending of a story to me holds 70-80% of how much I will end up liking the story. But again, it is personal preference that makes me not like it.

I am really glad I found about this manga and read it!
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Flat and meaningless   
Rating: 7.0 / 10.0
by cherrykookie
June 17th, 2015, 12:58am
This manga definitely was an interesting first at least. It intrigued me from the start, had me reading on and had some great concepts.

Unfortunately, starting from the Nanako arc, it went downhill. The ending was rushed and fell flat. It failed to be meaningful from my perspective. The author throws a bunch of twisted "wtf" moments and overplays it in an attempt to be meaningful. Can fool those who are newer to this genre, but (sadly) it couldn't fool me.
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What did you learn?   
Rating: 9.9 / 10.0
by fovika
May 23rd, 2015, 5:53pm
Well now, that was an unexpected journey. I feel as though everyone should read this, no exceptions. It makes you think (as any psychological tagged story should). You get involved and you can't change the fact that this is one story that sticks to you.

The ending is not what I wanted, but not unwelcomed. The whole flow of the story is not really what I wanted, but not unwelcomed, if that makes any sense. Everything that happens is calculated and controlled by the mangaka. A very well made manga.
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Rating: 7.7 / 10.0
by butako chan
April 17th, 2015, 10:36pm
What a trip. Half the time I felt like I was tripping out on drugs. The concepts tackled within the manga are both so foreign and familiar at the same time. You feel like you can connect and follow the story, but not without some extrapolation and thinking on your part.

... Last updated on April 17th, 2015, 10:38pm
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5 volume to many   
Rating: 8.0 / 10.0
by kiriee
April 7th, 2015, 8:24pm
if you read 21th century boy you know what it mean, manga like this deal a lot with a past, so it kind of hard to drag it long because when they introduce someone new it just strange it was never mentioned before, it was suddenly popup sure you can force yourself to explain it, but that strange feeling will always linger.

Anyway it was good while it last, the ending was just okay I think it somewhat explain contradiction in the character expression/feeling, a bit fucked up if you mind. Definitely worth reading if you're into something unique.

... Last updated on April 7th, 2015, 8:25pm
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Something Else   
Rating: 8.0 / 10.0
by Karichan10
February 11th, 2014, 11:24pm
I was drawn into this manga and pulled all the way to the end. I don't know the meaning to it, but it was intense and fun and obnoxious. It was all sorts of feelings. I recommend it for anyone who needs something to keep their mind going. It is not something I will forget. Oh it really got me laughing and mumbling absurdly until the very end. I dare ya to try and read it all the way through... then let us know XD
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Kinda disappointed   
Rating: N/A
by gibble
October 19th, 2013, 11:43am
I agree with the last two users, especially Mizura, they pretty described exactly how I felt.

I loved it when I first read it. It was fresh and interesting. I also love how author displays raw emotions. However at the end of the day, there's really nothing else going for it. I don't care about any of the characters. I'm not saying anything is bad per se. To me, it went from AMAZING to just alright....and that by itself is the disappointment imo. It just felt like the author underutilized a rather fascinating concept. A pity really...
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