: They investigate rumors of the previous Port Mafia boss returning from the dead, eventually uncovering a plot involving the investigator Arthur Rimbaud.
After returning to the present, the season introduces its primary antagonist: , leader of the "Rats in the House of the Dead". Bungou Stray Dogs 3rd Season
: Ultimately, Atsushi Nakajima and Ryūnosuke Akutagawa are forced to combine their powers to defeat Fyodor's subordinate, Ivan Goncharov, while Dazai outmaneuvers Fyodor on the intellectual battlefield. Production and Technical Highlights : They investigate rumors of the previous Port
: The virus will kill both leaders in 48 hours unless one of them dies first, which would save the other. This forces the Agency and the Mafia into a bloody all-out war to protect their respective heads. Production and Technical Highlights : The virus will
: This arc reveals how Chūya joined the Port Mafia and provides early glimpses into Dazai’s cold, manipulative brilliance. The Main Plot: The Cannibalism Arc
: Dazai, then a member of the Port Mafia, and Chūya, the powerful leader of a juvenile group called "Sheep," are forced into a partnership by the Mafia's leader, Ōgai Mori .