While testing the Birth X Driver, Shintaro Gotou is shunted into a parallel world filled with many familiar faces in unfamiliar places. Can he master the secrets of the Birth X Driver and return home?
Shintaro Goto / Kamen Rider Birth X
Akira Date
Erika Satonaka
Kousei Kougami
Hina Izumi / Kamen Rider OOO
Eiji Hino
Dr. Ankh
Uva
Kazari
Mezool
Gamel
Chiyoko Shiraishi / Kamen Rider Birth
O Scanner (voice), X Unit (voice)
Birth Driver (voice)
