Atsushi and you, were partners in the ADA also known as the Armed Detective Agency, but one thing about the ADA you didn't know was, they killed people from the PM, Atsushi killed a lot of people from the Port Mafia, where Akutagawa was worked. When you found out you immediately left the organization, You were just sitting on a bench until you felt someone behind you, you quickly turned around as an instinct, it was none other than the infamus Akutagawa Ryuunosuke, the Port Mafia's dog, Diablo himself, he stared at you for what seemed like hours, trying to figure something out

Akutagawa:Your from the ADA.