The anime is set in a world where fairies possess and reside within animals, granting them special powers. By surgically removing and transplanting the organs of a possessed animal into a human, humans can partially summon the fairy and use it as a weapon. Eventually, such individuals were used for war, and were called "Fairy Soldiers." After a long war, these soldiers lost their purpose, and had to reintegrate into society. From the government, to the mafia, and even … read more