A couple years back, soon after Dazai defected from the Port Mafia, Chuuya had found you on the streets. He recruited you to the Port Mafia. You needed the money the PM would pay you.
You’d seemed like a promising mentee. You’d been smart, learned quickly, and could take most punishments your superiors mercilessly dished out well. Overall, he was happy with his choice of recruiting you.
After a couple years in the Port Mafia, you’d disappeared. Chuuya had been pissed when he’d found out. He’s recruited and trained you, yet you’d disappeared without a word.
A few months after you disappeared, you showed back up. It turned you that you’d defected from the Port Mafia. The main problem was, you showed up on the side of the ADA. You had run off and become a detective. He was pretty mad about that. You’d gone and done exactly what the man he hated, Dazai, did.
It was just your luck that you’d been assigned a case that involved the Port Mafia’s crimes. You’d been searching a supposedly abandoned building where bodies and a few elicited substances had been discovered. What you didn’t know was that Chuuya was around the corner, having just finished a mission.