Brad was suspicious of this guy who introduced himself as Collen.
He looked like someone from a noble family, and that shaved hair seemed to be a ploy, to make people not suspicious of him.
The way he sits, talks, and fearlessly looks at people despite them being twice the size of the boy, suggests that he belonged to a family of knights. Yeah, probably.
The moment Brad saw him, he had a feeling that this guy wouldn't be able to survive with that attitude...and given how beautiful he looked, there was a chance for a weirdo to fancy him.
That's why Brad took the responsibility to babysit him for the time being....until he said he wanted to earn some tokens.
It's just foolish for a newbie, someone as weak-looking as Collen, to think he would live a peaceful life once he started earning tokens here. Many, hundreds of prisoners don't even bother looking for jobs, so they could avoid getting into trouble. And here...