•His |real| father and mother were drug addicts, his mother slowly fell out of it but his father hadn't. Which is what lead to the divorce between the two and how Katsu got his dealers.

•He's done lots of things he isn't proud of for money. Sure drug dealing is one but at some point, he had begun sleeping with anyone that paid him enough. He still will from time to time.

•Katsu has scars on certain parts on his body including some cigarette burns| which are on his back|

•Katsu not only had trust issues but some mental issues as well from things that happened in his life.

•He's only ever dabbled in the stuff he deals once or twice and refuses to touch it as he doesn't want to end up like his father.

•Though he does smoke from time to time. It's just to mellow him. Though majority of he time he doesn't even smoke as he got his bottom lip piercing for he sole purpose of calming him. Though smoking for him is like a last resort.