Anime News

Bungo Stray Dogs Season 4 Anime Dives into Untold Origins of the Detective Agency with New Visual, Cast

Bungo Stray Dogs Season 4


Bungo Stray Dogs Season 4 is officially live with its first episode, which kicks off an adaptation of the Untold Origins of the Detective Agency story from volume 3 of Kafka Asagiri and illustrator Sango Harukawa’s novel series. With the season’s launch comes a brand new visual and three additional cast members who have hopped aboard to voice younger versions of Edogawa Ranpo, Yukichi Fukuzawa and Oda Sakunosuke.


RELATED: Here’s the Exact Time Bungo Stray Dogs Season 4 Begins on Crunchyroll!


First up, the new visual:




The new character settings and their respective voice cast members include:


Edogawa Ranpo voiced by Hiroshi Kamiya (Levi in Attack on Titan):



Yukichi Fukuzawa voiced by Rikiya Koyama (Tora in Ushio and Tora):



Oda Sakunosuke voiced by Yuto Uemura (Tamaki Amajiki in My Hero Academia):




The staff and cast from earlier seasons will return for Season 4, and are as follows:

  • Director: Takuya Igarashi
  • Series Composition: Yoji Enokido
  • Character Designer: Nobuhiro Arai
  • Art Director: Yumiko Kondo
  • Editing: Shigeru Nishiyama
  • Music: Taku Iwasaki
  • Animation Production: BONES


  • Atsushi Nakajima voiced by Yuto Uemura
  • Osamu Dazai voiced by Mamoru Miyano
  • Kyoka Izumi voiced by Sumire Morohoshi
  • Ryunosuke Akutagawa voiced by Kenshiro Ono
  • Chuya Nakahara voiced by Kisho Taniyama 

Based on the manga written by Kafka Asagiri and illustrated by Sango Harukawa, Bungo Stray Dogs aired its first three seasons between 2016-2019, as well as released the Bungo Stray Dogs – DEAD APPLE film in 2018. A spin-off series titled Bungo Stray Dogs WAN! aired in 2021. Yen Press releases both the manga and light novel adaptations in English.


Crunchyroll aired the anime and its spin-off as they aired in Japan, and describes the series:


“Your detective agency is a pride of the country.” It has been about a month since the Armed Detective Agency, in collaboration with the Port Mafia, won the “cannibalism” operation masterminded by the “Rats in the House of the Dead”. The Armed Detective Agency was awarded the highest medal for safety contribution, the Order of the Azusa Bow of Exorcism, and was praised by the whole country. Then an urgent request from the government comes in. The four murders of the young senators were likened to the five signs of the mortality of the highest heavenly being of Rokudo Rinne, the Six Realms of Reincarnation. The Armed Detective Agency sets out to prevent the remaining murder from happening. “All forces must work together to prevent the attempts of the evil.” But it turns out to be a trap set by the cunning “Demon” Fyodor, who was supposed to have been captured…! Officials of the government are suspicious of the justice they uphold. A special unit of the military police, the “Hunting Dogs,” is ready to take action. The “Decay of the Angel” are roaming the streets to bring about the destruction of the world. The Armed Detective Agency, which has been slandered by the public since its glory, faces new enemies one after another and its bottomless despair. With their friendship falling apart, will Atsushi Nakajima be able to overcome this unprecedented crisis? With no glimmer of hope in sight, the battle is about to begin…

Source: Press release, Official Twitter


© Kafka Asagiri/35 Harukawa/KADOKAWA/ Bungo Stray Dogs Production Committee




Joseph Luster is the Games and Web editor at Otaku USA Magazine. You can read his comics at subhumanzoids. Follow him on Twitter @Moldilox.