It's been a while since I wrote a very timely post (= within week of release)...
Disclosure: I translated Imamura Masahiro's Death Among the Undead and Death Within the Evil Eye. And I do hope one day, I'll get to work on the other books in the series too, regardless of which publisher decides to continue with the books...
I had been looking forward to this book for a long time! I have been a fan of the series ever since I read Shijinsou no Satsujin, which is why I was more than thrilled when I was given the opportunity to work on the English release of the book, and the sequel Death Within the Evil Eye too. Shijinsou no Satsujin was a brilliant book where Imamura showed how the supernatural could work perfectly with a pure puzzle plot mystery full of dynamic action, and he only keeps on surprising with each subsequent book in the series. Akechi Kyousuke no Honsou however is completely different from the previous three books, because it is set before the first novel. Where the books deal with supernatural murder mysteries, here we have very minor crimes and other everyday life mysteries, ranging from stolen exam tests to.... someone wondering why after a night of drinking, they are not wearing their underwear but still wearing their trousers.
The first story in this book was originally released in 2019 to coincide with the release of the live-action film of Shijinsou no Satsujin and is titled Saisho demo Saigo demo nai Jiken ("Neither His First nor His Final Case"). It is set about four months before the first book, and deals with a case of assault: a burglar had been snooping inside a building currently only used by the Cosplay Club looking for something to steal when he was knocked out, where he was later found by a security guard. Nobody really believes him, but Akechi is asked to look into the case anyway, as the club members are afraid that if it's not properly resolved, the Cosplay Club might be closed. I discussed this story in detail when it was first released in 2019, so I refer to that review for more details. It's a well-constructed puzzle story that really shows off Imamura's plotting skills, and I do always love mysteries that are about school clubs etc. And wait, this was released in 2019!? I was expecting more stories to follow and that they'd be collected into a short story collection eventually, but I hadn't expected it to take 4.5 years...
To Aru Nichijou no Nazo ni Tsuite ("Regarding A Certain Slice-of-Life Mystery") is perhaps the most mundane of all mysteries in this book: we are introduced to Katou Hisao, an elderly man who runs a cafetaria in the somewhat aging Fujimachi Shopping Arcade. Every week, he goes out to have a drink at a local standing bar to gossip with other local shopkeepers. Soon after he arrives at his usual spot, a young student arrives there too, who listens to the gossiping tales of Hisao and the other people there. This time, they're talking about old Nurii, who used to run an lacquerware shop in the shopping arcade: Nuri owned the whole building, but after retiring, he kept on living there because he had no other choice: his wife had passed away already and he was estranged from his daughter, but because the building was so old and lacking in maintenance, he also couldn't sell it to move somewhere else, so he was stuck there. But recently, a mysterious buyer offered to buy the building from Nurii for much more than the building is worth, which of course sparked rumors and gossip among other shopkeepers in the arcade, with Katou himself thinking it'd be nice if he could finally sell the cafetaria and retire himself. Katou can't help but wonder why in heavens someone offered Nurii and he notices the young student has been asking questions too, so it seems there's really a mystery worth investigating... A nice layered slice-of-life mystery: it's interesting to see the world of this series through the eyes of someone completely different, just someone who runs a small cafeteria, which lately has seen a new clientele of children because of the retro Space Invaders table they have. Through Hisao, we learn about how the shopping arcade has changed in the last few decades, with shops coming, but mostly going, and that is why he's wondering why anyone would pay much more than Nurii's building was actually worth, with some even joking whether the buyer hadn't actually meant to buy the larger multi-tenant building next door. These kind of slice-of-life mysteries often revolve around presenting a good explanation (motive) for a seemingly strange action, and I do think the motive is good for this story, though it's a bit hard to deduce beforehand why exactly, until a rather conclusive clue suddenly appears. So in that sense, I found it a bit unfair. I do like the layered puzzle though, which builds on a pretty famous story within the Japanese mystery scene, and I like the solution presented here. This is also the type of story you'd expect the least based on what you hear about Akechi and Hamura's adventures in Shijinsou no Satsujin.
Deisui Hadagi Kirisaki Jiken ("The Case of the Torn Hangover Underwear") starts with Akechi calling Hamura to come immediately. The previous night, Akechi had been drinking with classmates after finish a project together, but when it was time to go home, Akechi seemed a bit too drunk to send back alone. As nobody knew where Akechi lived though, they called Hamura, who brought Akechi home by taxi (one of the classmates gave him taxi money). Akechi, still dead drunk, said he was okay, so Hamura said goodbye at the front entrance of the apartment building and watched Akechi enter, after which he himself went home. Akechi in turn woke up this morning in his own bed with a headache, still wearing the clothes he wore last night. Fortunately, he had remembered to lock the door with his key and the door guard before falling asleep. But when he went to the toilet, he discovered something terrifying. For after removing his belt and trousers, he realized he wasn't wearing any underwear: why would he not be wearing his underwear, but still his trousers, and with the belt on? He then found his undies on the floor, but it was full of tears and rips. Akechi thus summoned Hamura to his room. He honestly can't remember anything of last night, so together, they have to figure out what happened to his undies last night. This is probably the most memorable story of the collection, not per se because of deductive brilliance, but because of the really silly and insignificant mystery (yes, in a positive way). Akechi himself can't remember much, so the two start coming up with various theories about why Akechi would have removed his underwear, while still putting back on his trousers and belt. This is a funny story of course, as we get Imamura's usual plotting revolving around theories based on physical evidence and actions of the characters involved, but about something so silly. I think the solution hinges on something that is hard to deduce beforehand, because of the way the clues are laid out, but I do love how this prequel story actually ties back? forward? to one of the later books in terms of themes.
Shuukyougaku Shiken Mondai Roei Jiken ("The Case of the Leaked Theology Exam") is a case alluded to in Shijinsou no Satsujin
and takes place in July. Akechi and Hamura are walking down the stairs
of a university building when suddenly a flustered student comes running
to them, saying exam questions have been stolen. They have a talk with
the student, Kumori Minori, who explains she had been in the office of
Professor Yanagi. Minori and another student, Teramatsu Sou, had been
told to write a formal apology essays by the professor because they had
been cheating with their lecture attendence records. They were told to
write the essay in Yanagi's office. While they were in his office,
Yanagi had put a USB stick with the questions for the upcoming theology
exams in his office safe, but then he had to go out for a bit because of
a phone call. During his absence, Teramatsu also finished his essay and
left, leaving Minori alone. She went to the toilet, but when she
returned, she found Yanagi's office ransacked, the safe opened and the
USB stick gone! Akechi quickly confirms with building security that
nobody actually left the building the last ten minutes or so, as Yanagi and
Teramatsu had been talking at the entrance of the building, while the
employees-only exit had also been watched at the time. Suspicion falls
on Minori, who had been alone in the office, but if she's the thief, how
could she open the safe, and where could she have hidden the USB stick,
as she couldn't have left the building? A nice story with a situation
that is not strictly impossible, but still allows for Akechi and Hamura
to talk about Chesterton's The Invisible Man: the thief managing to search an office and
guess the safe combination in just three minutes is hard enough, but
then they also needed to get away from that office without being seen by
anyone, and pulling off all of that seems impossible. A story with few
suspects, which makes it rather easy to vaguely guess who's
behind the theft and how it was done, though I think Imamura did a good
job setting up the clues and the logical trail you're supposed to follow (and not just a gut feeling). Some parts of the plan of the culprit seem very sloppy, relying on the actions of people they can not be so sure of, but I guess it was a gamble worth taking.
Tegami Baramaki Heights Jiken ("The Case of The Scattered Letters at Heights") is set the furthest back in the past, when Hamura wasn't enrolled at Shinkou University yet. At the time, Akechi, dreaming of becoming a great detective, had started a part-time job at the local Tanuma Detective Agency. Because one of Tanuma's employees is injured and the others have their own cases, Tanuma is forced to take on the new part-timer (Akechi) along as they work on a new case. Someone has been spreading stalker letters to residents of Heights Tokuro, an apartment complex consisting of three buildings. Some of them have received letters and informed the owner and caretalker of Heights Tokuro, who has now hired Tanuma to investigate the case, though on a rather small budget, so they only have three days to work on it. The letters are clearly stalker letters, talking about watching when the recipient returned home, or how they saw them smoking and they are also all written on the same paper and using the same writing style, but for some reason, several residents have received these letters in their letterboxes, until it suddenly stopped. Still, this is pretty creepy, so Tanuma and Akechi first go inquire to see if other residents have received similar letters (and simply not reported them to the caretaker/police). This is probably the most complex story of the volume, with a lot more going than you'd initially suspect. The story starts a bit slow, with Tanuma and Akechi interviewing the residents of Heights Tokuro and asking them in detail about when they received letters etc. Because the letters come from the same sender and seem to be talking about the same person, the detectives first suspect it might be a stalker whose target recently moved to Heights Tokuro, but of whom the stalker does not know which flat they have exactly, but that seems not quite right, as why would the stalker then just put random letters in random letterboxes, rather than first making sure where their target lives? The solution is actually quite clever, though rather complex, and I do think it really demands of you to just roll with a certain revelation. It's a story that perhaps would have benefitted from more pages, like being treated as a novella, or perhaps worked out into a full novel (with of course more body to the story), as I think the core ideas of this story regarding the letters are really cool, with honestly a very cool twist regarding the true meaning behind all those people receiving these letters, but some moments feel a bit too abrupt. Still, one of the cleverest "poison pen/stalker letters" mysteries I ever read and I am generally not too a big a fan of them.
Fans of Shijinsou no Satsujin might be surprised by what Akechi Kyousuke no Honsou has to offer: it is definitely not at all similar to the previous novels: gone are the murders, no supernatural elements that are cleverly integrated in the mystery, none of that. Instead, we have the slightly arrogant, but very passionate Akechi, occasionally supported by Hamura, as he deals with a lot of more mundane, and minor cases. But while I think this book is certainly not as strong as the supernatural efforts of Imamura in the previous books, you still see Imamura coming up with cleverly plotted short mysteries with surprise twists, which are nonetheless well-clewed and of course, always with a comedic tone in which he shows a lot of love for the character of Akechi. My favorite is probably still the first story in the collection, as I do think the "real" crimes (like theft/stolen exams) in this collection allow for the best and most rewarding plots (and I love the school/university setting). As a palate cleanser, Akechi Kyousuke no Honsou is amusing and it did precisely what I already expected it'd do based on the first story I read in 2019, but I do have to say it makes me yearn for the next proper novel in the series!