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Manga Info
Q.E.D. - Shoumei Shuuryou  
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Touma Sou graduated from MIT, but he comes back to Japan because he wants to know how it feels to be a high school student. On the other hand, Mizuhara Kana is a strong girl who loves sports. Together, they are partners in solving cases that happen around them.

Won the 33rd Kodansha Manga Award for shounen in 2009 (shared with Fairy Tail).


Related Series
C.M.B. (Alternate Story)
Q.E.D. iff - Shoumei Shuuryou (Sequel)

Associated Names
Q.E.D. 神通小偵探
Quod Erat Demonstrandum - Shomei Shuryo

Groups Scanlating

Latest Release(s)
v.32 c.63.5 by Irregular Scans 2 months ago
v.50 c.99 (end) by Irregular Scans about 1 year ago
v.50 c.98 by Irregular Scans about 1 year ago
Search for all releases of this series

in Country of Origin
50 Volumes (Complete)

Completely Scanlated?

Anime Start/End Chapter

User Reviews


User Rating
Average: 8.3 / 10.0 (205 votes)
Bayesian Average: 8.06 / 10.0

Last Updated
March 2nd 2020, 5:29am PST



Category Recommendations





Original Publisher

Serialized In (magazine)
Gekkan Shounen Magazine + (Kodansha)
Magazine E-no (Kodansha)
Magazine Great (Kodansha)

Licensed (in English)

English Publisher

Activity Stats (vs. other series)
Weekly Pos #560 increased(+167)
Monthly Pos #1518 increased(+156)
3 Month Pos #2451 increased(+59)
6 Month Pos #3240 decreased(-24)
Year Pos #3902 increased(+271)

List Stats
On 1217 reading lists
On 672 wish lists
On 120 completed lists
On 47 unfinished lists
On 255 custom lists

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User Comments  [ Order by usefulness ]
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Fun read  
by tanukischarm
January 2nd, 2021, 8:36pm
Rating: 8.0 / 10.0
QED has charisma for people who like physics, math, and the like. But it is disadvantage for those who don't. That's the reason I prefer CMB over QED. QED is fresher and much funnier but keeps repeating the same environment. Sometimes I find the story too pushy to look "smart" with too many complicated theories. But the nature of the two series makes me enjoy their presentation which is equally unique. I can't give it a full mark because there are times when the cases handled become loose and unattractive. Suits yourself.
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it's fun  
by reivatin
August 16th, 2015, 12:28am
Rating: 10.0 / 10.0
well, dunno if he is kinda of detective or not
he never said he is as it, but one thing is true
HE IS GENIUS, even people around him acknowledge it

as the story tell on very first volume, he is just want to enjoy his high school life which (dunno if right or no) he lost when he jump into MIT when he young, he just want to experience it
But even now he is High school, he is already (correct me if i'm wrong) graduate from MIT
he is acknowledge by another researcher there
mostly in math field (so don't be surprised if you got a case which involve math formula, which is fun to read but you never understand)
Well, Kana, I know your feeling bigrazz

as wuhugm said he is not famous as detective, but at least as researcher he is acknowledge by people around him
well, mostly the case is murder, but it just coincidence when he or Kana are around,

but to make you interested to read it, this manga have comedy on his own
while it's like Conan in term of comedy, the stoic and dense Touma is main point here
give it a try, the charms of this series lay on the math, the comedy duo, and the short-solved case
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No need to compare...  
by himemai
March 11th, 2015, 3:43am
Rating: 10.0 / 10.0
because I think every of detective manga out there has their own charm.

Well, as for myself... I've read Conan, Kindaichi, C.M.B, DDS or you may say almost all big title of detective that published in my place^^. But maybe Q.E.D is the most brilliant detective manga for me. I really like how the case is not draggy and over with one book, how the explanation make sense and makes me confuse * u *) , I really like how deep (sometimes) the case is presented.

Of course, unlike C.M.B, Q.E.D is more serious but I can't help it. I'm more deeply in love with Toma and Kana. And I really like whenever Q.E.D x C.M.B ^^ Reading how their own point of view sure makes me feel asdfghjdfghj wow! But again, Toma is my favourite whenever it happen ^ o ^ //brickd
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sometimes confusing but fun to read  
by wansmor
January 4th, 2015, 6:12am
Rating: 8.0 / 10.0
as a mystery manga, Q.E.D. is a unique one.

This manga, like some have said before, is not all about murder on every case. don't get mistaken though, I feel that some of these cases are the best xD ( I absolutely love the school's mystery club, these guys are hilarious).

it maybe lacking in term of character development or relationship development in particular, but I think that the lead pair are cute that way. I always think that they actually care for each other whether they are aware of that or not.

Another thing about this series is that the author likes developing the cases based on a science theories (mostly mathematics, but I have seen also economics and historical facts) and provide us with a brief explanation to the theory (this happen on 1 of 2 cases on every comic books). There were times when I got really confused by it lol, but fear not, even if you skip it you can still enjoy reading this.
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Hmm... Looks like I still need to learn  
by rennov
February 13th, 2014, 6:38am
Rating: N/A
Hmm... some reviewers are really amazing. They seems can crack some mysteries in this series and truly do research on QED materials, miss/mr. enaikelt for example, while I'm not. I'm just go read and stumbled on the awesomeness of QED (well, I'm just a pure-hearted boy maybe...)

I personally like the various cases which are provided by QED - not only murder and murder. Why? While murder case only provide an insight about modus operandi which is often useless and unpractical in society, a non-murder-case can provide an insight which is practical and seems-cool-to-be-understood, and QED provide many of it.

But well, I still read only 12 volumes, I hope it will get interesting and more variety cases comes out...
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Charming, but Did Not Do The Research  
by enaikelt
January 25th, 2012, 8:13pm
Rating: N/A
So I read through a few chapters, and I thought "Well, the characters are cute, let's keep going. It seems fun."

Then Touma, who went to school in Massachusetts, was all "I'm seeing snow for the first time!!!"

And then I read Diane Butler's horrendous English letter.

And then I solved that "how tall does a tree grow" thing off the top of my head (as anyone with a basic knowledge of calculus could.)

And then I dropped the manga. xD
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Well, I like it.  
by kichiX
January 18th, 2012, 10:48am
Rating: N/A
To be honest, I feel that a kind of injustice is being done to this manga with the comments. I suppose it depends on what you're looking for in manga, but in a detective/mystery manga I expect and am looking for mysteries that are solved. QED delivers this and there's no big fuss about anything.
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by whitespade
November 25th, 2011, 5:04pm
Rating: 8.4 / 10.0
as far as detective story go, it's okay. the evidence is just too shaky any good lawyer can overturn it, if only the culprit don't start confessing after the ball is dropped. and ya know, there are alot of child murderers lol...quite unrealistic. and i just can't accept important organization like the cia or a government seemed so careless...

the character faces all seem to blend together, interchangeable. it can't be help that there are different character for every case, but at least different hairstyle, but even that cannot be managed. somehow i am always irritated with mizuhara. she is just too airheaded, too stubborn, too genki for me. and too many abuse. if i was touma i would sue the ass out of her.

but good point for including variety of cases, not just murders. even if i say a lot of bad points, it is still worth reading, because sometimes the case, the notes, the additional info is quite interesting.
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my rating is the result of years reading this manga.  
by yuno19
October 10th, 2011, 6:36am
Rating: 7.0 / 10.0
i completely agree with nugro guy below. i will only add some.

reading qed is like watching the beautiful mind, served in front of you the beauty of mathematics. seems unsolvable, and almost certain won't contribute anything good even if you're able to solved them. but it is undeniable they are captivating, fascinating, stupefying.

that's about half of the manga.

the other half is about simplicity. there is no exaggerated hatred in murder case. only reasonable but stirred with depth of emotion. reading qed never incite disgusted feeling by how the characters act. because we can somehow put ourselves in their shoe, albeit those simplistic art.

qed is mystery manga that is not so mysterious. its turns beautiful over time.
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A rare 10 from a picky Person  
by nugro
August 18th, 2011, 3:17am
Rating: 10.0 / 10.0
If you think this goes nowhere then Conan, Kindaichi and virtually every other detective manga are guilty too (during much of its life, usually only change nearing completion).

With this at least the characters are being developed and really good at that albeit slowly (you could tell how Touma definitely but slowly began to change over the course of the series, thing I never feel on Conan or Kindaichi), this has the effect of seemingly boring but I never feel that way whenever I read this manga and the characters keep growing on me.

Also this one does not exclusively revolve around murder and dead body, in fact as the series progress there are more and more interesting and/or quirky case with equally interesting resolution and trivia involving broad range of subjects other mystery series could only touch the surface.

As a whole one could regard this as a slice of life with a lot of interesting mystery and twist on it, both done very well. IMO, this is one the best in its genre.

... Last updated on August 18th, 2011, 3:18am
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