"Ugh, I-I can't defeat you. You are m-my master..."
"I-I will become stronger! I will become stronger and never have to die!!"
An undead monster that moves freely thanks to the power of darkness in its bones. People tend to mistakenly think it still has a soul, but it is actually controlled by a dark force. It is unintelligent and doesn't sense pain, but it does have a very strong will to survive. It's said that it attacks those with a soul out to envy.