The Bugster Virus, formed from video games, threatens humanity and seeks to turn Bugsters into complete beings. A hospital intern, Emu Hojo, and three other Kamen Riders (Brave, Snipe, and Lazer) must defeat the virus and save humanity.
Hiroki Iijima
Emu Hojo / Kamen Rider Ex-Aid
Toshiki Seto
Hiiro Kagami / Kamen Rider Brave
Ukyo Matsumoto
Taiga Hanaya / Kamen Rider Snipe
Tetsuya Iwanaga
Kuroto Dan / Kamen Rider Genm
Ruka Matsuda
Asuna Karino / Poppy Pipopapo
Hayato Onozuka
Kiriya Kujo / Kamen Rider Lazer
