Gévaudan to Iu Kemono ~Rougoku de Onna wo Musaboru Moto Ningen no Saikyou Monster wa, Fukushuu no Prison Break wo Kuwadateru~

The Butcher Demon. An ugly monster that devours women and scatters death within the prison. Betrayed by humans and captured by aliens, “I” am remade into the Butcher Demon, the being both feared and called the Butcher. I still have memories of being human, but I cannot recall my name, nor can I even speak. Following the orders of aliens who look like elves, dwarves, and goblins, I bring humiliation upon the captured women. And these very days push the deadliest of monsters to swear revenge and resolve to break out of prison!?