Mystery of the Samurai Sword

"For all who take the sword will perish by the sword."

"Matthew 26" (New Revised Standard Version)

Reading these books does bring back memories as while Spiral was far from the first anime I ever saw, it was one of the first series I encountered once I started to actually look for mystery anime series after Conan and Kindaichi Shounen.

 

Ayumu, piano and deductive prodigy, solved two murder cases that occured at his high school, but never had he expected to find himself dueling a teacher of his school. Kuromine Kiriko is one of the best swordfighters in Japan and now Ayumu, who has never even picked up a sword in his life before, is standing in a dojo, facing this terrifyingly cold martial artist. Ayumu is to win one point by hitting Kiriko in one of the vital points of Kendo, but how is a complete amateur going to win even one point against a swordmaster? The reason why Ayumu is in this predicament? The murder on Sakurazaki Kengo. Kengo and Kiriko had been Kendo-rivals since their youth and had been polar opposites. Kengo fought with passion and would overwhelm his opponents with his blazing energy, Kiriko fought calculated, striking with cold preciseness. Both also happened to enroll in the same dojo, and were the top students there. Jinpachi, the master of the dojo had to decide who would become the next master and inherit the centuries-old sword Yuugao. While it was clear Kengo, who was not only dating the master's granddaughter, but with his warm personality, was obviously the better "people's person" when it came to leading a school, Kiriko in the end was the better swordsman and out of the many duels between Kengo and Kiriko, it was usually Kiriko who became the victor. However, when the master had Kiriko and Kengo have one final duel to win Yuugao, Kengo managed to win, and with that, he'd became the next master. Seven months ago, Jinpachi handed Kengo the sword Yuugao. While Jinpachi had to go to the hospital afterwards, his granddaughter of course celebrated the occasion with Kengo, and even Kiriko stopped by to congratulate him. However, the following morning, Kengo's dead body was found in a burning car, a stake having been driven through his chest. The murderer was never caught, even though Himeko is sure Kiriko killed her brother. And now seven months later, Kiriko is set to receive Yuugao, as Jinpachi also passed away in the meantime and the dojo needs a new master. The police never managed to find evidence Kiriko killed Kengo, so Himeko at least want to damage his reputation as a swordmaster by winning a point on him, but Ayumu decides to look in the case, as he perhaps can figure out how Kiriko killed Kengo despite having an alibi, but he then finds himself having to fight Kiriko himself... Can Ayumu win this duel and prove who killed Kengo in Shirodaira Kyou's Spiral ~ Suiri no Kizuna 1: Swordmaster no Hanzai ("Spiral ~ The Bonds of Reasoning 1: The Crime of the Swordmaster" 2001)? 

 

Spiral ~ Suiri no Kizuna or Spiral ~ The Bonds of Reasoning, the mystery(-themed) manga created by writer Shirodaira Kyou and artist Mizuno Eita, was about Ayumu, whose brother Kiyotaka disappeared two years ago after a final phone call with Ayumu where he mentioned the phrase "Blade Children". At the start of the series, Ayumu, who like his brother is a prodigy in both the piano and reasoning, gets involved in a murder case that occurs at his school, but with the help of the school newspaper club president Hiyono, he manages to prove his innocence, only to learn that this murder involved the Blade Children. This spin-off book was the first of four to be released, and is set extremely early in the series. It basically has no connections whatsoever with the main series save for the presence of Ayumu and Hiyono and tonally, it's also fairly different, so it really feels like a spin-off.

While this is the first novel, I have already read the second and third ones because I don't read books in order, so I already expected this book to be a bit different in tone compared to the main series. Which is why I was pleasantly surprised by the media res opening scene where Ayumu faces Kiriko in a Kendo duel where Ayumu has to deduce his way to winning a point against a swordmaster. This is the type of "logic battle" we often saw in the main series, where Ayumu had to outsmart his opponents in life-or-death games involving bombs, guns or... a ball game, so this scene felt very much like Spiral. Like in those situations, Ayumu can actually logically deduce what to do in a Kendo duel, and while this sounds weird at first, he comes up with a very logical conclusion to what to do in this duel in order to win a point over Kiriko. It all makes surprisingly sense, and is cleverly clewed in a fair way, which you wouldn't expect for a sword fight, which makes it all the more fun. It also ties in well with the past problem about Kengo's murder, because if you figure that out, it gives you strong hints about Kiriko's actions in the duel, so those parts are really well integrated.

 

Like the other novels, this book consists out of one short novella (the titular The Crime of the Swordmaster) and two short stories, so ultimately, the main story isn't that complex. The Kengo murder is... okay, considering it's a short story. I think one part of the misdirection is a bit too weak, and once you realize what that misdirection was intended to do, you also know the how and why behind Kengo's death. So it's a bit short and straightforward as a mystery story. It also depends on a few characters acting in certain ways to have this mystery work in the first place, though I think the motivation for these characters is supported well enough. But as a perfect alibi story, it's fairly weak, and I think the way it ties back to the duel scene, is the more memorable part of this book.

The book also includes two stories which were originally published online, which focus on Ayumi's brother Kiyotaka when he was a police detective. The stories were originally published in two parts, a Problem and Solution part, so I suppose the idea was you had a week or something like that to guess who did it between the posting of the first and second parts. While they are okay short mystery stories, one about a woman being killed by a jellyfish stuffed in her mouth, and the other about a braindead woman who'd die anyway being stabbed in the heart, I don't think they really work well in this format of "guess the solution", because the type of mystery these stories are about aren't really that straightforward. Ellery Queen-esque reasonings where you cross off suspects off a list one by one work better for these kind of puzzle challenges I think. I do think the second story, about the stabbed braindead woman, was good as a mystery story, just not as one that is intentionally split up in two parts.

Overall, I'd say Spiral ~ Suiri no Kizuna 1: Swordmaster no Hanzai is a pretty decent first spin-off novel. While it is still quite different from the main series, I'd say that of the three I have read now, it comes closest to the tropes we know of the main series, so it feels the most as part of the Spiral world. As a mystery story, the second one is the best, but it also feels barely connected to the main series. Anyway, one more to go!

Original Japanese title(s): 城平京(著) 水野英多(イラスト) 『小説　スパイラル～推理の絆1　ソードマスターの犯罪』