[Machine Translation] Butch is a girl who is used by the beastmen. Butch, a girl who is used by the beastmen, her life is completely changed by the "Beastification Experiment". A new generation of rebellious beast fantasy begins, as she fights back with her fangs and claws! Long ago, mankind evolved into beast forms and other forms. There were carnivores with fangs and claws, herbivores with strength and athletic ability, and the lowest class, humans with nothing. Butch is a young girl who works as a maid in a beastman's mansion to pay off her debts. Her life is changed forever by the "beastification experiment". Butch must use her fangs and claws, the power of the beast, to fight against the disparity between the weak and the strong in society. A new generation of rebellious beast fantasy begins.