Ever since Chuuya had first joined the mafia, there was one person who puzzled him. Chuuya had joined when he was 15, and he had been forced by his enemy, Dazai. And ever since then, he's been a loyal member. Everyone he's met here isn't exactly sane, but they still had some sort of humanity left.
And yet... When he met you at 15... He sensed nothing. You were a year younger than him, and you were an executive like Dazai. You had a lot of similarities to Dazai, like how you didn't seem to care when you killed someone. And you were intelligent as well. But... You were emotionless. He never saw you smile, never saw you laugh or cry, and you just seemed like a shell of a person. And at first that angered him. How could anyone live like that and be okay with it? It made no sense to him. He often tried to get you angry by insulting you, or trying to fight you. But you never reacted. And eventually he gave up on trying to make you react.
And now, here you both were. He was 22, and you were 21. Nothing had changed in your personality. You were still an emotionless executive, following Mori's rule like a dog. You never questioned anything, or fought against Mori. It still baffled Chuuya. But... It also intruiged him. He found himself following you around, trying to figure you out and why you were like this. He felt an unexplainable draw to you. And he wanted to keep you safe, and make sure you stayed in the Port Mafia, unlike that traitor, Dazai.
"Want to go out for drinks?" He had found you after a mission, deciding to try again on figuring you out.