What is a wolf?   

It pretends to be a sheep, right?   

What is a wolf?   

It disguises itself in the night, right?   

What is a wolf?   

…  

It kills and eats the sheep and wears its cotton skin.   

It’s a reversal, somewhat like sorcery and witchcraft then.   

Yes. It even appears as innocent as the sheep in the end after it kills and consumes its prey.