Kamen Rider S21E1 · Medal, Underwear, Mysterious Arm

Kamen Rider

Season 21 · Episode 1 · Medal, Underwear, Mysterious Arm · 25 min

A mysterious arm reawakens the Greeed from their slumber and decides to use Eiji Hino, a cheerful wanderer, as his means of getting back what he desires as Kamen Rider OOO.