Detective School Q – Case 3 “Class Begins at Detective School” and Case 4 “The Kamikakushi Village Murder Case” – Amagi Seimaru

Having solved the mysterious murders of The Kirisaki Island Tragedy in the previous volume, and officially passing the Dan Detective School Entrance Exam, the examinees return to mainland Japan. Here, Japan’s most famous living sleuth Dan Morihiko announces the formation of the “Qualifying Class”, or “Q Class”, a specially-designed curriculum for only the most prospective students from which Dan plans to pick his most suitable successor!

The very first assignment for the Q Class involves a recent disappearance from the Kamikakushi village. Based on his footprints, university student on a school research trip seemed to mysterious step out of his window of the inn at which he stayed, walk 30 meters into the center of a muddy, unplanted rice field, and then vanish into mid-air! Proving their case-cracking bonafides by easily solving this impossible crime, Q Class soon learns that this is only the latest in a long series of similar vanishings in the village and its neighboring village of Hyoutan and Kamikakushi, two lonely villages nestled in a mountain range, and they’re expected to get to the bottom of the case!

Hyoutan Village and Kamikakushi Village are in fact quite isolated civilizations, as to get to Hyoutan requires a 30 minute walk through a tunnel from a bus-stop, and the only way into Kamikakushi is another 30 minute walk through another, spiraled tunnel that only attaches to Hyoutan. Worse yet, the village of Kamikakushi is ruled by a cult who worships a God of Disease, represented by masks representing smallpox, so when a crew of reporters hunting for a treasure fabled to exist in one of the two villages has one of their members murdered and buried in a graveyard, it’s immediately assumed to be the work of the very same God of Disease.

The village of Kamikakushi requires everyone wear masks to walk around the village, so with only two masks to spare the students of Q Class are forced to split up. The aloof prodigy Ryuu teams up with Megumi, the girl with identic memory, to bring the investigation to Kamikakushi, while hyper-active protagonist Kyuu, athlete Kinta, and computer wizz-cum-game developer Kazuma stay in Hyoutan, with the two groups only able to communicate through the phones in the inns in each village. As more mysterious murders pile up, like the impossible flying of a reporter before being dropped to his death, Class Q is on a race against the clock with the constant threat of their own potential murders hanging over them in Case 3 – Class Begins Detective School” (Chapters 14-16) and Case 4 – “The Kamikakushi Village Murder Case” (Chapters 17-29) of Detective School Q.

This is the case of Detective School Q. Fans of the series point to this one as being quintessentially emblematic of the franchise in every way, as well as being the creme de la creme of all of its many cases. Sure, there are many great cases in this manga, but “The Kamikakushi Village Murder Case” is the Great Case of all of Detective School Q if you ask many of its enjoyers. Is this necessarily true, though…?

The transitionary case between “The Tragedy of Kirisaki Island” and “The Kamikakushi Village Murder Case”, “Class Begins at Detective School” is a simple three-chapter case dealing simultaneously with the aftermath of the former while setting up the latter. This sort of “mini-case” between two large cases is quite common in Detective School Q, as it is a series with a consistent inter-connected narrative rather than every murder occurring within a continuity bubble, so of course there needs to be seamless transitions between the cases. That being said, as “Class Begins at Detective School” concerns itself with the serial killing of “The Kamikakushi Village Murder Case”, the two can be considered as one story.

The impossible disappearance of a student from the middle of a field at the end of a track of footprints is a decently creative but ultimately minor technical trick which I’ve seen performed in a more audacious form in another manga series. Like the more Ellery Queenian crime in “The Detective School Entrance Exam“, it’s still impressive that such a crime could be fit into such a small page count, but it isn’t particularly noteworthy otherwise. It instead merely serves as a stepping stone into the principle murders of the case proper.

As for the actual “Kamikakushu Village Murder Case”, it seems as if its immense reputation is one not unlike Shimada Soji’s landmark The Tokyo Zodiac Murders: a technically weakly-constructed story, elevated by the cussed audacity of its central trick. The story has a somewhat similar issue to the one I complained about in my review of “The Legend of Lake Hiren from The Kindaichi Case Files, another impossible crime manga Amagi Seimaru worked on. That is to say, the story ultimately feels very loose, due to over-loading the puzzle and cluing into one of the murders while the multiple other murders merely exist in respect to that one. This often leads to a somewhat awkward feeling mystery tale in which one particular crime is dense, but long stretches of time are spent with trivial crimes with few to none important clues.

Within “The Kamikakushi Village Murder Case”, there are three murders. The first isn’t even passingly mentioned in the denouement, with its only contribution to the narrative being to provide a clue. The second murder is an impossible murder with the very interesting impression of a victim flying into the air based on his video recording, but the trick is explained nearly immediately and isn’t incredibly impressive, being a variation on the exact kind of trick you’d expect for this kind of impossible crime. This naturally means the third crime, in which a man accused of the murder challenges the detectives to explain how he could commit a murder soon-to-occur while provided with an impossible alibi, is clearly designated as the “important crime”, and naturally almost all of the clues pertaining to the killer’s identity and the grand central trick of the story are primarily explored through the investigation into this murder.

Until this murder is committed, there is very little in the way of cluing to speak of. The story is especially light on visual clues, disappointingly underutilizing Megumi and her identic memory which often contributes to smart visual clues in the rest of the series. At most, there is a code that gives a little (very important) history on the true nature of the two villages. It’s a trend that often leads to the mysteries feeling “thinner” than their length, and “The Kamikakushi Village Murder Case” would certainly benefit from trimming out the second impossible murder and cutting four or so chapters off of its runtime.

But don’t get the wrong idea! “The Kamikakushi Village Murder Case” swings for the fences in a very major way, and like The Tokyo Zodiac Murders, is a worthy classic because of how well it works when it does work. Although Megumi is poorly utilized, this story still does a great job depicting the many ways the varied skill sets of the Q Class work towards establishing the solution. Kinta’s raw intuitive perception, Kazuma’s access to the immense well of information the internet provides, Kyuu’s pure creativity, and Ryuu’s simple brilliance all contribute their own unique pieces to the puzzle.

Better yet is the central mystery. There is a very important clue involving a piece of paper with the infinity symbol written on it (or maybe it’s a side-ways letter 8? Or a gourd?). This audacious visual clue goes a long way in revealing the central mystery behind the murders in the Kamikakushi villages. A central mystery which is utterly brilliant, by the way, revealing one of the ambitious alibi tricks of the entire genre. It’s an alibi trick so large in scale that it’s baffling, fitting the many comparisons drawn to Shimada Soji’s work. It’s a trick that not only provides the killer with a damnable alibi, but it’s one which offers a compelling, unique, and mystifying motive for the mysteries and offering a compelling conclusion to the cult of the God of Disease. The weight of the denouement is immense, highlighting all of the strengths of the case, while compensating for many of its structural weaknesses.

In the end “The Kamikakushi Village Murder Case” ended up a very similar beast to The Tokyo Zodiac Murders. Boasting flawed and awkward construction, the story nonetheless elevates itself with nothing less than the raw ingenuity of its final trick, one which borders on reality manipulation pure and simple. Trimming down the case would’ve done it wonders, but that doesn’t stop “The Kamikakushi Village Murder Case” from rising above the sum of its parts. While I highly doubt that I’ll walk away considering this the best of the best of the best of Detective School Q, I can safely see that it might very well have the best idea for a central trick in the series, and I can’t deny walking away happy with reading the story!


Hey, two-for-two! Detective School Q‘s reputation for consistent is clearly well-earned, as both of its full and proper cases have been at least very good. I do hate being negative about this case like I had been, because really it does justify itself in what it becomes, but with the awkward trend that Amagi had maintained from working on The Kindaichi Case Files it really did end up losing a bit of the greatness it could’ve had. I especially feel bad because I know many people consider this the absolute height of the series, and I don’t like being a party-pooper with stories people really like. The core trick really is something great, so I feel its place in my ranking is justified, but consider it tentative and reluctant and it might be re-evaluated as I read on in the series.

  1. The Kamikakushi Village Murder Case (Chapters 17-29)
  2. The Tragedy of Kirisaki Island (Chapters 4-13)
  3. Class Begins at Detective School (Chapters 14-16)
  4. Detective School Entrance Exam (Chapters 1-3)

Detective School Q – Case 1 “Detective School Entrance Exam” & Case 2 “The Tragedy of Kirisaki Island” – Amagi Seimaru

Kyuu isn’t very good at schoolwork. It isn’t that he’s dumb, or that he struggles to learn in an academic setting. Quite the opposite in fact, he simply doesn’t try! Kyuu is a genius trained by an unnamed famous detective whose chosen career path has nothing to do with the classes at his normal high-school: he wants to become the world’s next Great Detective, following in the footsteps of Sherlock Holmes and Hercule Poirot. To that end, Kyuu decides to forego life as an everyday high-schooler looking to become an everyday salaryman, and instead enroll in the highly exclusive and wildly competitive Dan Detective School, founded by Japan’s most famous living sleuth Morihiko Dan!

When Kyuu arrives at the Entrance Exam, he discovers that the task of the prospective students is to solve an old real-world murder, based on nothing but two photographs — one taken by the victim and the other the police — and six suspects (played by staff from the school). The victim is a master of Judo who was stabbed in his rental cottage in a snowy January, and six suspects were located, all having motives, no alibis, and were staying at a hotel across the lake from the victim. With the help of the identic memory of his new ally Megumi, Kyuu is able to immediately spot who he believes is the culprit and the two, together with other exam-takers, are then tasked with trailing their pick in Case 1 – “Detective School Entrance Exam” (Chapters 1-3), the beginning of shin-honkaku manga series Detective Academy Q by Amagi Seimaru.

Eagle-eyed readers of the blog might recognize Amagi Seimaru’s name by its frequent mention in the comments sections of my blog posts on reviews of the impossible crime manga (comic books) The Kindaichi Case Files. That franchise is itself split into many sub-series, the first of which is predominantly credited to the writing of Yōzaburō Kanari. However, starting with the second series, the writing credit is given exclusively to Amagi Seimaru, who was originally a co-writer and editor under Kanari. Very many The Kindaichi Case Files fans consider Amagi the superior writer between the two, finding the many series written under him to be on average better and more consistent in quality than the original Kanari run, an opinion shared by TomCat of Beneath the Stains of Time and more hesitantly by Ho-Ling of Ho-Ling no Jikenbo. More popular than the opinion that the Amagi-run Kindaichi Case Files series are better than the Kanari-run ones, though, is the opinion that Amagi Seimaru’s original mystery manga series also focusing on impossible crimes and locked-room mysteries, Detective School Q, is even better than those, and more consistent at that! Well, that sounds promising, giving my spurt of underwhelming Kindaichi Case File reads recently…

This is another case where I anticipate I’ll never be able to get the old-guard involved in reading the series (but what do I know? I’ve successfully converted some readers of Detective Conan, after all…). Admittedly, the premise is very kiddish and the tone follows suit. Lots of unfunny prat-falls and lame jokes typical in shounen (young boy) manga, almost cringe-inducing energy and endless melodrama over trivial things, and the incredibly juvenile concept of a detective-creating academy definitely reek of bad kid fiction.

On that note, though, something I’ve proselytized about a lot on this blog is that in Japan “kid fiction” is usually an indictment on the complexity of language and a few storytelling trends, and very little else. So-called “young boy” fiction tend to involve fantastical and melodramatic stories involving inordinately skilled school-age children, but besides that you can’t count on anything being quite how you expect. These “young boy” stories are capable of telling stories as complex or mature as “adult” stories, and frequently do! The demographic is mostly about accessibility, and is rarely used as an excuse to make something sub-par because it’s “for kids”. Hell, even subject matter is rarely policed as much as it is in the English-speaking world (when “kid stories” from Japan get translated into English, it isn’t uncommon for them to get as high as TV-Mature, or 18+, ratings, for instance).

I bring this up because, yeah, the first arc of Detective School Q, “The Detective School Exam“, would have turned me away from the manga immediately if I didn’t both have assurance the series was good or have foreknowledge of the potential of so-called “kid fiction” from Japan.

Of course, in retrospect, “The Detective School Exam” is important as it establishes a few elements that will become the core of this series. Firstly, it introduces us to the central group of detectives, who each specialize in different areas that make up for the weaknesses of their classmates. Kintarō “Kinta” Tōyama has no common sense and isn’t very intelligent, but he has superb 20/10 vision and preternatural intuitive skills. Kyuu has neither discipline nor book smarts, but his deductive reasoning and creativity recalls history’s best detectives, and usually allow for him to be the one to piece everything together in the end. In fact, the specialty of Megumi Minami is central to the way Detective School Q takes advantage of its medium. Her borderline supernaturally acute “photographic” (identic) memory is essentially a giant signpost telegraphing to the audience that visual clues, clues not called attention to by the text but instead planted in the drawings of the comic book, will be part of the series. This is an aspect of Detective Conan or The Kindaichi Case Files that equally well takes advantage of its visual medium, but Megumi’s inclusion also permits for visual clues that don’t need to be addressed immediately, as it’ll be possible for other characters to “revisit” scenes later through her memory. It allows for visual clues that are more subtle and specific, and yet still fairplay while also not as bluntly telegraphed.

Outside of this, however? The core murder mystery is set-up in less than five pages, explored very little past that, quickly resolved, and explained in a few pages in the next chapter. Don’t get me wrong, the Ellery Queenian chain of detective is impressive, being a surprisingly dense and smart piece of ratiocination based on a single clue (or absence-of-clue, another trope of Queen’s) for a murder given less than five full pages of focus, and it perfectly sets up the series’ approach to visual clues. But then it being resolved so quickly and compactly also means you spend quite a bite of time in the “trailing the suspect” portion of the story, a semi-Holmsian tale in which the “suspect” constantly tries to elude the protagonists through a variety of tricks, along with other traps laid by the exam coordinators from Dan Detective School. It isn’t incredibly interesting, and a fairly unflattering introduction to the franchise for people who might be worried there’s a little too much anime in their mystery with its many parallels to “Exam Chapters” in other shounen series.

…Which, of course, is the reason why I decided to review these two arcs in one blog post. The running trend has been that the manga series I review start off incredibly underwhelming and take comically long amounts of time before finally picking up and becoming the great pieces of mystery fiction as which they are now known. To start this series off with an underwhelming review of a three-chapter introductory case would not be doing Detective School Q any justice as, like I’d already mentioned, the average quality and consistency in this series is quite high. So, what of Case 2 – “The Tragedy of Kirisaki Island” (4-13)?

“The Tragedy of Kirisaki Island” shifts gears as Kyuu, Kinta, and Megumi clear the first half of the exam. The final part of the entrance test involves journeying to an infamous island well-known for a gruesome series of impossible killings that occurred there many years in the past, committed by a man claiming to be a second-coming of Jack the Ripper himself. The examinees are instructed to solve these historical crimes, but before the test can even begin a member of their examination group is found murdered, inside of a room locked-and-sealed from within… and, just like the original Jack the Ripper killings, he’d been cut in half. And when more murders begin to crop up, each one involving a corpse cut into pieces, the remaining examinees are on the hunt for a vicious killer before they wind up on the chopping block next!

This is the series’ first proper murder mystery, and unlike both Detective Conan and The Kindaichi Case Files, Detective School Q‘s opener is great. Not only is it great, I’m actually shocked to find that I consider it one of the best mysteries I’ve ever read, and I’m even more shocked to discover that many people don’t even consider this a notable high-point in the series! If “one of the best mysteries I’ve read” is a medium-point in the quality of this franchise, that alone is a testament to Detective School Q‘s later accomplishments…

There’s one particular locked-room trick in this story which is a cussedly original take on an old-hat. As corny as it is, the novelty and elegance of the solution cannot be denied. That being said, the locked-room trick is good and original, but it isn’t an all-timer classic of raw ingenuity, and the impossible crimes are not what make this story such a masterful piece of mystery fiction.

Given the context of the story, there’s an obvious conclusion many readers will draw that is immediately rendered impossible by the fact the murders are dismemberments. This ties into a fantastic “outer-“mystery surrounding the framework of the locked-room murders, boasting one of the cleverest misdirections and best hints of the genre, turning on something that is an inversion of the unique trick of Gur Gbxlb Mbqvnp Zheqref (spoilers, do not click unless you’re sure you’ve read both stories). Utterly fantastic first mystery for Detective School Q, and it sets a wonderful pace for the remainder of the series.


A few extra notes for the curious before I wrap this post up with the ranking of all two cases I’ve read. I recommend not watching the anime adaptation of this one. While I haven’t seen it myself, I know it cuts out a few noteworthy cases (including the just-reviewed “Tragedy of Kirisaki Island”), adds some weak filler cases, and only goes until about halfway into the series. Given that Detective School Q has an overarching plot, that means you’ll miss out by watching the anime, so I suggest keeping trying to find it in you to read the original manga version of this series.

Also, I won’t be mentioning these in the reviews themselves but leaving little notes at the end; these two stories span Volumes 1 and 2! So be sure to pick them up!

I’m pleased as punch to read a detective manga that immediately starts out good and doesn’t have to go through eight books of mediocre mysteries to get to the great stories. This, I suppose, is the benefit of reading a story written by someone who already has experience writing mystery manga. Amagi Seimaru has written many mystery series besides just Detective School Q and The Kindaichi Case Files. Most interesting to me is Sherlock Bones, a series of inverted mysteries featuring a young man who gets the help of a Sherlock Holmes trapped in the body of a dog! I may very well review that series as well!

I don’t believe this ranking is exactly necessary, but it’s a formality I’d hate to break…


  1. The Tragedy of Kirisaki Island (Chapters 4-13)
  2. Detective School Entrance Exam (Chapters 1-3)