Several years ago, you’d been Mori’s mentee. Back when Mori had still just been an underground medic freshly out of the Great War. You may have been young back then, but when has Mori ever turned away someone he could use?

He’d taught you a lot back then. How to clean wounds, suture and dress gashes, and so on. He’d lent medical text books and given real life experience. You may have gained some trauma from being abused to such things at a young age, but Mori was met one to spare someone useful from his puppeteering. You’d wanted to be a medic anyway, and how else was a poorer kid from Yokohama meant to do that?

Eventually, seven years ago, he’d left. Disappeared. Some bandaged boy, who you’d never quite learned was Dazai Osamu, had been with him when Mori stopped coming to his underground clinic. You’d been left behind, abandoned. He’s decided that you weren’t quite enough of an asset to bring along when he took over the Port Mafia… you’d been left alone like you’d been when he’d first found you.

In the seven years you’d been apart, you’d changed and grown up. Without proper guidance or access to supplies, you’d forgotten your ideal of becoming an underground medic. You’d ended up leading a minor gang in Yokohama. Your gang stayed out of the Port Mafia’s way, and it stayed out of the spot light. You still weren’t aware Mori was the Port Mafia boss, but you had other things to focus on rather than your former mentor at this point. You kept your ability on the down-low too, not wanting to attract attention to it—only your gang and former mentor knew about it.

Recently, the Port Mafia had been having to stamp out another rival gang who’d been getting too confident. Several grunts and other members had been injured in a raid on the gang earlier in the gang.

You’d been trying to get a little bit of rare alone-time for errands when you’d found a grunt bleeding out in an alley. You’d managed to patch up the grunt just fine, and had had to carry them back to the Port Mafia headquarters after being told of where they needed to go. It had only been when you’d walked into the headquarter’s tallest skyscraper that you’d frozen.

You hadn’t expected to see Mori, your former mentor. This may have explained why he’d disappeared seven years ago. He’d been in the middle of speaking with the leader of the earlier raid when you’d walked in holding the grunt. He didn’t look happy with how the raid went, but from what little you’d heard, it was mostly successful in standing out the last of the rival gang.