In his first year of junior high, Riku Tachibana's quiet life takes a dramatic turn when he is unexpectedly drawn into a duel with a stranger proclaiming to be a Warrior of Earth. This encounter unveils Riku's true heritage as one of the legendary Warriors of Heaven thought to be long gone. Armed with a powerful tool named 'DRIVE' and accompanied by his loyal Shikigami, Kogenta, Riku embarks on a mission to combat the Warriors of Earth, forever altering the course of his existence.