Following the conclusion of the three-way organizational war, government bureaucrat Ango Sakaguchi recalls an event that transpired years ago, after the death of the former Port Mafia boss. Osamu Dazai, still a new recruit at the time, was tasked with investigating rumors related to a mysterious explosion that decimated part of the city years ago—and its connection to the alleged reappearance of the former boss.
Due to circumstances out of his control, he is partnered with Chuuya Nakahara, the gifted yet impulsive leader of a rival clan known as the ''Sheep,'' to uncover the truth behind the case and shine a light on the myth of Arahabaki—the god of fire who might just lead Dazai to the case's solution.
Meanwhile, in the present day, it is business as usual once again for the Armed Detective Agency. Their peaceful break will not last for long, however, as enemies old and new gather their strength and prepare for another face-off.
[Written by MAL Rewrite]+ More
More Seasons
Characters & Voice Actors

Ace
Supporting
Akutagawa, Gin
Supporting
Akutagawa, Ryuunosuke
Supporting
Dostoyevsky, Fyodor
Supporting
Edogawa, Ranpo
Supporting
Elise
Supporting
Fitzgerald, Francis Scott Key
Supporting
Fukuzawa, Yukichi
SupportingRecommended for you
Shenmue the Animation
TV
24m
All Saints Street 3
ONA
4m
The Outcast 4th Season
ONA
24m
Spy x Family
TV
24m
Don't Hurt Me, My Healer!
TV
24m
Deaimon
TV
24m
Shin Ikkitousen
TV
26m
I'm Quitting Heroing
TV
23m
Ao Ashi
TV
23m
The Dawn of the Witch
TV
24m
Kingdom 4th Season
TV
24m
Yuu Gi Ou: Go Rush!!
TV
24m