10 parts Complete When a string of violent incidents shakes Yokohama, whispers of Arahabaki resurface- experiments that should have died with the past. The Armed Detective Agency and Port Mafia are forced into an uneasy truce, throwing two former partners back together: Osamu Dazai and Chuuya Nakahara.
Bound by history, haunted by trust, and dragged into a conspiracy that threatens to unravel Chuuya's very existence, the infamous Double Black must fight side by side once more. But when the mission demands corruption, can Chuuya risk it all knowing Dazai may not catch him this time?
In the shadows of ruined buildings and forgotten experiments, Soukoku's bond will be tested against enemies who know their every weakness. And in the end, one question remains:
Do they still lay with the trust they once had?