Well. [Killua looks away, casually folding his wrists behind his head as they walk.]

I used to do assassin stuff, but I retired. I'm a Pro Hunter now, which is a lucrative, rare and dangerous career back home. I'm pretty new to it, though, and I haven't specifically decided on my specialty... I just started to get good at controlling my aura to alter my strength at will, and I could manipulate it into electricity and stuff. You could probably compare it to magic, I guess.