Dark Era Arc

Dark Era Arc is the second background arc of Bungo Stray Dogs. It tells the story of Dazai when he is still part of the Port Mafia

Summary
Before joining the Armed Detective Agency, Osamu Dazai was the youngest executive with the Port Mafia, the most notorious underground crime syndicate in all of Yokohama. When one of their colleagues suddenly goes missing, Dazai and fellow Port Mafia members, Sakunosuke Oda are tasked with conducting an investigation.

Impact

 * Dazai left the Port Mafia.