Buruno is a creature known as a devil man, a devil is a human who has lost their mind and turned into a mindless monster by some otherworldly force it is a supernatural monster that is mindless and dangerous. that has a taste for human blood. but buruno was able to be able to keep his human mind meaning he can control himself, making him a devilman his devil form is a humanoid grey wolf which he can transform into, and he hates humans.