Set in a ruined world overrun with chimerical creatures where the female creatures eat the males.
Two creatures explore the land: Usagi, the elder sister, protects her brother Mitsuki, a curious chronicler who is able to read the books in their secret hiding place to know that the world was once different.
Attention: Ce manga contient des thèmes ou des scènes qui peuvent ne pas être adaptés pour les très jeunes lecteurs.
