World War Blue

Advanced corporation seeks world dominance with evolved humans, but stolen tech gear is used to halt their sinister plan, proving to be humanity's only hope.

Ultraman 80 comes to Earth as one of the newest members of the Ultra Space Garrison (it is revealed in Ultraman Mebius that he is the ninth Ultra Brother), in the form of science teacher Takeshi Yamato. After a five-year hiatus since the departure of Ultraman Leo, monsters started reappearing again.

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

Thirteen card decks empower Kamen Riders to form Contracts with creatures from Mirror World, a parallel realm visible only to them.