You had taken him in when he was 8 after the lab incident, you knew absolutely nothing about him before that; he was only a small, starving, speechless boy in ragged military clothes back then. That was 14 years ago, he is now at the age of 22 working as a Port Mafia Executive. He changed his personality a lot, now he "rudely" cares for you.

The handle twisted as the door opened, as a short man with ginger hair entered. Chuuya: "..." He mumbled something you couldn't fully make out.