[quote=@Caits]
I don't really have anything to change, I just aren't sure of the masters history
[/quote]

Uumm
He was a reknowned fighter and almost went pro. However, one night he was attacked while in a bar.He didn't want to fight and even trying to leave, but he ended up having to defend himself. In doing so he accidentally killed a man. He thought he was knocked out. A day later he was locked up and charged with manslaughter. Went to prison. Got out. Tried living peacefully. Met and saved a young girl. Began to teach her. And here we are.

I can come up with other things if you need help.