"In a remote mountain village under the watchful eyes of two stone guardians, the young Yuru contentedly lives off the land while staying close to the only family he has left--Asa, his precious twin sister. Asa, meanwhile, carries out a mysterious 'duty' on behalf of the village while locked in a cage. Why is Asa a prisoner? And what other secrets does Yuru's otherwise idyllic home hide?"--Back cover.