I'm already all over what you're doing with Wrath, but Five will naturally be watching him whenever he's in any room. Especially if that room has either of his sisters in it. He might take him more seriously than he takes most people with opinions.

He'd also be curious about the way he teleports, and you know, Hell stuff. Awkward CR is kind of Five's deal, so I'm sure it'll be a whole thing while he tries to decide if he's an enemy or not. Prepare for this kid to be all up in your business.