In 0015, fifty years before the story's start, the world was being corrupted by Dark Bring, evil stones that bestowed incredible powers to their owners. The Dark Bring were used by the Raregroove Kingdom, and the Symphonia Kingdom fought against them with their Holy Bring.
Shiba, the first RAVE Master, attempted to destroy Sinclaire, the "mother" of the Dark Bring, with his Ten Commandments Sword. The aftermath caused the massive explosion known as "Overdrive" that destroyed one-tenth of the known world. Shiba, protected from the disaster by Plue, a special guardian "dog" who shielded him from the blast, held onto the RAVE required to power his sword. Plue and the five remaining fragments of RAVE, however, scattered around the world.
Fifty years later Haru Glory, a teenager living on the peaceful Garage Island, fishes Plue up by accident. Several events soon follow, including Shiba's arrival and his desire to reclaim Plue, as well as the appearance of a mysterious organization known as Demon Card, whose members possess Dark Bring and aim to rule the world. After Haru battles one of its members, Shiba discovers he is the second RAVE Master, and entrusts his RAVE, Plue, and the Ten Commandments Sword to Haru. Haru embarks upon an adventure to find the other fragments of Rave and to save the world.