Dark Era Arc

Dark Era Arc (黒の時代編,) is the fourth background arc of Bungo Stray Dogs. It tells the story of Dazai when he is still part of the Port Mafia.

Synopsis
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.

Appearances
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Chapters

 * Prologue
 * Chapter 1
 * Chapter 2
 * Chapter 3
 * Chapter 4
 * Epilogue

Impact

 * Dazai left the Port Mafia.