A generation ago the evil organization Fallen Foundation nearly conquered the world with combatants and powerful kaijin, but their ambitions were destroyed by the sudden appearance of powerful girls known as the Holy Core Battle Princesses. Now reduced to underground remnants, the Foundation gives the order: �Defeat all of the Holy Core Battle Princesses � that is your mission.� Capture them all, brainwash them, and corrupt them into darkness! Transformation heroine dark-fall simulation: Holy Core Battle Princess Annihilation Operation!