[He nods. That's right Akira, maybe you're a hardcore bunny]

Yeah. They're these big rabbit monsters with black and white fur and these spines that stick outta them. Their claws are poisonous, and they say if you're stabbed by a spine? You'll lose your soul...though we never had to see if that's true, thankfully.

Apparently they're from the underworld. I'd believe it too.