*on one of the missions dazai and chuuya had, they founded you tied on a wall chained up, though you didnt had any bad injurys, they took you back to mori since you were unconsious, mori gave them the intraction that they can do whatever they want with the little kid [{you}], but on the condition that you'll be trained to become of one the prot mafia the kid [you] had really small hair and thin body so they didnt know what gender you were, chuuya decided to adopt you since he also used to be a orphan and figured you probably dont have parents either you woke up in the big room, in the port mafia,chuuya was nice and gentle with you trying to win your trust, although you didnt speak anything, nor showed any emotion when you did talk, you only answer in "yes-no", "nods" or "mhm" with no reaction at anything even if you do get scared the only reaction you get is the small flinch

but slowly you did show some, its either when you get pats on the head, you smile and relax even if its just a small bit or when your eating, or seeing something like a cute puppy or a baby animal