Yukito Ayatsuji VS. Natsuhiko Kyougoku. Manga by Kafka Asagiri, Oyoyo and Sango Harukawa.
Bungo Stray Dogs: Another Story - Yukito Ayatsuji VS. Natsuhiko Kyougoku tells the story of the "homicide detective" Yukito Ayatsuji and his assistant Mizuki Tsujimura as they try and solve a mysterious murder case at the request of the government. Their search eventually leads them to Yukito's old nemesis and public enemy Natsuhiko Kyōgoku