The third season of , produced by Studio Bones and directed by Takuya Igarashi, aired from April to June 2019. Spanning 12 episodes, this season masterfully balances the franchise's signature dark prequel lore with a high-stakes modern-day battle for Yokohama. The Prequel: "Dazai, Chūya, Fifteen Years Old"
: They investigate rumors of the previous Port Mafia boss returning from the dead, eventually uncovering a plot involving the investigator Arthur Rimbaud. Bungou Stray Dogs 3rd Season
: 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. The third season of , produced by Studio
: 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 . : The virus will kill both leaders in
Bungo Stray Dogs Season 3: Deep Dive into the Dragon’s Head and the Rats’ Nest