Synopsis: Gévaudan: The Name of the Beast - Once Human, the Most Vicious Monster in Prison, Who Preys on Women, Plots a Prison Break in the Name of Revenge

The Slaughter Demon——. A hideous monster that violates and devours women in prison, spreading death. Betrayed by humans and captured by aliens, "I" was remodeled into a Slaughter Demon, a being feared and called the Butcher. Although I have memories of when I was once human, I cannot remember my name, nor can I even speak words. Treated as less than slaves by aliens who look like Elves, Dwarves, Goblins, and Lizardmen, I inflict humiliation on captured women as ordered. Those days lead the strongest monster to swear "revenge" and decide to break out of prison...!? The breakout Dark Fantasy of the one guy who must absolutely never be let out of prison begins!