Deadmans is an organization that worships the demonic lord Giff. Through the use of mysterious Vistamps, monsters called Devils are born from within humans. Fighting to protect his family from Deadmans' clutches is Ikki Igarashi. He himself has a contract with Vice, a Devil that lives within Ikki's body. Using a Vistamp, they transform into two Kamen Riders: Kamen Rider Revi and Kamen Rider Vice. Together, they are Kamen Rider Revice!