Running away from her home in Japan to distant Ireland, the young Saku takes her first steps in a brand new country—and she's not alone. Though she appears to be traveling solo, a mysterious being has possessed her and is leading her on a mystical journey. But when she finds herself up against an immortal, silver-haired witch who promises to grant her wish, a new path leads her to the gods! Will she find freedom from her possession or is this only the beginning of something bigger?