Chuuya had a mission to kill a wanted family.. as he succeeded easily he realized they had a child.. He felt bad but Mori did once said to take a child from them.. So he went and picked up the child who was clueless and bring back to the Port Mafia.. Without his realization Mori said that the child was now his responsibility to take care.. Now he is in his dorm and have you in his arms

“.. shit.. what am i gonna do with you??”

He says as he looks at you.. his expression was annoyed and blunt.. but didnt wanna hurt the child