Mikki, the youngest member of the Empousai family, would rather forget about the family quirk that has the women secretly sacrificing their blood to the roses the Empousais are known for, but when she unwittingly performs a sacred ritual, she ends up in the Realm of the Rose where she learns that she is a High Priestess and the only hope for reversing a curse Hecate placed on her guardian beast and the rest of the realm long ago.