Kamen Rider Decade

Rider War: Prologue (1x30)

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The Hikari Studio has arrived to find Kiva and Blade's Worlds merging, the two fighting each other—Riders and monsters together—to keep their world from disappearing as a result. Can Tsukasa convince Kazuma and Wataru that Dai-Shocker is the true enemy before Apollogeist can merge all of the Rider Worlds?