Takeru Tenkuuji, the son of a ghost hunter, is murdered by the evil Ganma and resurrected by a mysterious hermit and bestowns upon him the Ghost Driver and a Ghost Eyecon, an orb-shaped device which can see ghostly creatures like spirits of dead creatures, Ganma, and other Riders. The hermit tells Takeru that he has 99 days to gather 15 additional heroic Eyecons to be brought back to life permanently, and must fight the Ganma as Kamen Rider Ghost to obtain them.