
Released
IMDb
Set in an alternative world of Bungo Stray Dogs, this "what-if" story imagines if Atsushi Nakajima was in the Port Mafia and Ryūnosuke Akutagawa was in the Armed Detective Agency, instead of vice-versa. The story follows Ryūnosuke Akutagawa, who vows revenge on a man dressed in black in order to rescue his sister. However, as he is about to starve to death, a man from the Armed Detective Agency appears.
Casts

Shouhei Hashimoto
Ryunosuke Akutagawa

Yuki Torigoe
Atsushi Nakajima
Rui Tabuchi
Osamu Dazai

Masashi Taniguchi
Sakunosuke Oda

Ayaka Konno
Gin

Teruma
Kunikida Doppo
Nagae Ryoki
Ranpo Edogawa

Kosuke Kuwano
Junichirō Tanizaki
Hitoshi Horinouchi
Kenji Miyazawa
Ao Hirokawa
Akiko Yosano

Akari Saito
Naomi Tanizaki

Sakina Kuwae
Kyouka Izumi

Keisuke Ueda
Chuuya Nakahara

Mitsu Murata
Tatsuhiko Shibusawa
Yuta Kishimoto
Fyodor Dostoevsky

Keisuke Minami
Orphanage Director

Hirofumi Araki
Ango Sakaguchi
Crews

Koichi Sakamoto
Director
Granrodeo
Theme Song Performance
Kafka Asagiri
Screenplay
Taku Iwasaki
Original Music Composer
Yuriko Kitada
Casting