The all-powerful dark stone -- a magical stone and ruler of the dark side -- awakens after a 50-year respite. When it falls into the hands of the evil demon card, the world is in terrible danger. A sacred stone called Rave and its master Shiba are the only defense against the dark stone's evil powers. Yet, Shiba loses control over Rave after he is mortally attacked by a demon card assassin. With the dark side looming a boy called Haru may be the world's single hope of revitalizing Rave and escaping the clutches of evil