Three hundred years after the end, I live in the paradise-like "Ark City", which is the last pure land of mankind. Until an accident, I awakened the ability to see through the essence of things. I saw that the "guardians" we worshiped as gods were monsters made of wriggling tentacles of flesh and blood; the nutritional ointment we relied on for survival was made from compatriots who "died". This is not a pure land, it is clearly a slaughterhouse where we are kept captive! The angels who patrol every day are butchers who urge us to die; the teachings of compassion are lies that paralyze us. As the only one who knows, I must pretend to be the most pious sheep in order to survive in this heaven and hell. But I have only one goal - to escape and tell the world.
