Story follows mythical guardian who once protected gateway between spirit world, human world

4-piece band niina performs “STORY” ending theme

Kanae Itō, Ai Orikasa, more join cast for spring anime

Pilaf Alien performs ending theme

Series stars Takeo Ōtsuka, Shion Wakayama, Natsuko Abe

Asian Kung-Fu Generation performs opening theme; Seiichirō Yamashita joins cast as SAI