-UNDERGOING EXTENSIVE REWRITES!-
Update: As of March 4, 2021, all the original chapters have been taken down.
The stories of the Kamen Riders have become legendary all over the world, and even the universe. At one point, a whole world populated by descendants of Riders was formed, but has been destroyed by evil forces. The Rider Powers have been sealed into watches, and scattered to a far away world.
When Tom Decade, the last survivor of the Rider World and a descendant of Kamen Rider Decade, lands in Equestria, he is soon thrust into an adventure to retrieve all the RideWatches and keep his new home safe. But things aren't always as they seem, as multiple forces conspire to lead the young Rider to a ghastly fate...