Bungo Stray Dogs: Another Story - Yukito Ayatsuji vs. Natsuhiko Kyougoku

Yukito Ayatsuji, a brilliant investigator known as the Homicide Detective, has a skill so deadly that he is assigned a minder―rookie Special Division for Unusual Powers agent Mizuki Tsujimura―to monitor him. And when Ayatsuji is tasked with solving a murder case, who should be pulling the strings behind the scenes but his archnemesis... Natsuhiko Kyougoku?! As the stakes continue to ramp up, so too do the mysteries. In this battle of wits between a sorcerer and a detective, it's trick or be tricked! (Source: Yen Press)

Having been kicked out of the orphanage, a despairing young man by the name of Atsushi Nakajima rescues a strange man from a suicide attempt--Osamu Dazai. Turns out that Dazai is part of an armed-detective agency staffed by individuals whose supernatural powers take on a literary bent! (Source: Yen Press)