[ In comics like that, Killua would be a hero if by hero you meant morally ambiguous thirteen year old easily swayed by the promise of chocolate into doing bad things. So basically, a villain.
Luckily, he's not in American comic books, so he's getting better about that. ]
You were totally scared of it a minute ago.
[ He thinks this is a very reasonable point to why he might, possibly, be worried that Yata will get in his way. The red aura is pretty neat, though, so maybe he won't have to spend the whole fight trying to keep Yata from getting his brain eaten. ]
I totally would have gone with it
Luckily, he's not in American comic books, so he's getting better about that. ]
You were totally scared of it a minute ago.
[ He thinks this is a very reasonable point to why he might, possibly, be worried that Yata will get in his way. The red aura is pretty neat, though, so maybe he won't have to spend the whole fight trying to keep Yata from getting his brain eaten. ]