I don't have that many books with bright yellow covers I think....
One of my favorite reads last year was Ashibe Taku's Oomarike Satsujin Jiken ("The Oomari Family Murder Case"), which in a way was the quintessential Ashibe novel, because I think it might be the book where he managed to combine all his personal tropes/interests and the mystery plot the best. Many of his book have very detailed historical and literary references, often ones that only the fans will understand, and while sometimes I think it goes a bit too far, it was handled extremely well in Oomarike Satsujin Jiken, a story that was set in war-time Osaka (the city of Osaka also being a major theme of Ashibe's books) about the downfall of the Oomari family during the war, one of the many merchant families in Osaka, focusing on its female members who stay behind to hold the fort while the men were sent to war. The way the book blended the historical setting and the Trojan Women-esque story with a mystery plot that could've only worked in that specific setting was really good, and to me, it really felt like the work where all these Ashibe tropes came together the best.
Ashibe Taku's Meitantei wa Dare da ("Who is the Great Detective?", 2022) is many ways very unlike what I'd normally expect of an Ashibe work, and almost the complete opposite in tone and approach compared to Oomarike Satsujin Jiken. The book is a short story collection, and the premise of the book is that the stories are everything but (straight) whodunnits, and yet they are, in a way, still whodunnits. As the title of the book already suggests, the seven stories in this book are not about whodunnit, as in, who committed the crime, but the stories turn the question around, and presents the reader with variants. In one story, the question is who shall be murdered, instead of whodunnit, and while in a different story, you are actually asked to deduce which of the suspects isn't a culprit, because the rest of the suspects in fact are all conspiring criminals! And of course, the final story, the title story, has you even guess which of the "suspects" in the story is in fact a detective. So the stories are whodunnits, but not in the way you'd expect!When I say that this book is very much unlike a work you'd expect from Ashibe though, I do have to say right now that's especially noticable when it comes to the matter of the "depth" of the stories. For this book is really short, and each story is over before you know it. The stories all follow a similar set-up too, starting in media res with the narrator (each time a different person) finding themselves in a pressing situation which forces to guess their special variant of whodunnit, and once the set-up is explained to the reader, it basically immediately advances to the solution. Each story moves at a very fast pace, but also very much just revolve around one single trick or idea, Where other short stories I read by Ashibe often had very deeply fleshed-out historical settings or more engaging "fluff" around the core plot with for example literary references, the stories in Meitantei wa Dare da are all so focused on their single-idea-per-story, each story is basically a hit or miss. Either you like the idea or not, and there's little more to a story to feel anything about, almost like one trick ponies. So whether you'll like this book, will depend very much on the mystery of each individual story, and only on that, because that's all the meat on the bones.
And because all stories are quite short, I don't think it's wise to introduce them one by one as I usually do because by the time I'm done you basically already know 3/4 of the stories. But to briefly pick up a few: the first story is titled Hannin de nai no wa dare ("Who is Not the Culprit?") and has perhaps the funnest reversal of the whodunnit concept. The narrator is the nephew of a money lender with some enemies, and because his uncle is dying and he will inherit, the narrator suddenly learns some people who borrow money are very willing to kill to escape their debts. Making use of a coupon to stay at a remotely located inn, the narrator happens to overhear three of the other guests at the inn conspiring to kill him because he'll inherit his uncle's money lending business, but the narrator can't get a look at their faces nor does he get to hear the voices really well. Due to the remote location, he can't just get away on foot, so the next morning, he looks around the breakfast hall, staring at the four other guests having their first meal. For if there are three conspirators, it means the fourth must be not connected, so the narrator wants to ask them for help before the three culprits will do something to him. Ultimately, the plot is very much a 'figure out who is not lying' type of plot, but the set-up is really funny. Another memorable one is Ikinokotta no wa dare ("Who Survived?"), where a reporter is put on the trail of a group of missing persons who seem to have no connection whatsoever, but who all have been invited to the same, remotely located hotel. When he arrives there however, the building suddenly catches fire and is lost completely. However, the police find traces people have been killed in the guest rooms, and the whole set-up reminds them of those death game stories, where people are lured together and somehow enticed to kill each other. But a clue sets the reporter on a trail that makes them suspect one of them faked their death, but which of them? Again a story that revolves very much about one trick/one clue, though I think the "big" clue in this story is better than the one in Hannin de nai no wa dare.
Other stories have titles like Kaitou wa dare da ("Who is the Phantom Thief?"), Tsukamaru no wa dare da ("Who Will be Arrested?") and Wana wo Kakeru no wa dare da ("Who Sets the Trap?"), so you can probably imagine what kind of stories that will be. Some stories are very straightforward in the way they handle the title theme (Who is the Phantom Thief? will probably not suprise you in terms of how the story goes), some stories are a bit more surprising, like the title story, where the detective is actually the "bad guy" because one of the guests at a hotel is an operative working for a foreign dictatorship looking for a political activist who is lying low in Japan.
You can tell author Ashibe has fun with these stories and some of the seven stories have clever twists or a well hidden clue that makes you go "aha!' when you reach the end, but still, it does feel like he could've gotten more out of the whole concept of the book, because each story is just so... light. At first I even thought that these stories had perhaps been serialized in a non-mystery magazine (so for a general audience) and that's why they were so short and very much about one single idea each time, but apparently, this was a straight-to-book release. I can imagine Ashibe wrote this lighter experience in between his bigger, more developed projects with tons of historical and literary research behind it, like a short 'rest' period between his heavier works, but I can't help wondering what he could've gotten out of the concept if it had the 'depth' of many of his other works.
Don't get me wrong though. I did like Meitantei wa Dare da as a read, and it was fun each time to see how the whodunnit angle would be changed, but I read this book between other, longer/"weightier" books so it was perfect for me as a breather read. As a mystery short story collection though, it's not exactly what you'd expect from Ashibe based on other works I have read, and it'll probably feel a bit lean on the bones for many readers, even if the core premise is definitely entertaining. So not a bad read, but I think the premise is still better than the execution.