Kamen Rider S21 E1 - Medal, Underwear, Mysterious Arm

Kamen Rider

Kamen Rider S21 E1 - Medal, Underwear, Mysterious Arm
Apr 12, 2026 24 min Action & Adventure Movies
6.4

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.

Creator N/A
Actor Ryutaro Imai, Maho Horiguchi, Kenta Mishima
Country Japan
Production TV Asahi
Kamen Rider eps. Medal, Underwear, Mysterious Arm
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Kamen Rider eps. Cat, Evolution, A Glutton
Kamen Rider eps. Doubt, Photo E-mail, Saving Hand
Kamen Rider eps. Game of Tag, Nest, Celebrity
Kamen Rider eps. Western Clothing, A Contract, Ultimate Combo
Kamen Rider eps. Useless Husband, A Trap, Big Win
Kamen Rider eps. Slacking Off, Lack of Ambition, On a Break
Kamen Rider eps. Soaked, The Past, Scorching Hot Combo
Kamen Rider eps. Fist, An Experiment, Super Bike
Kamen Rider eps. Traveler, Swallowtail Butterfly, Celebrity
Kamen Rider eps. Unagi, The World, Heavy-Hitter Combo
Kamen Rider eps. Siamese Cat, Stress, Genius Surgeon
Kamen Rider eps. Pride, Surgery, Secret
Kamen Rider eps. Struggle for the Medals, Transport Truck, Container
Kamen Rider eps. Conclusion, Greeed, New Rider
Kamen Rider eps. Kendo Girl, Oden, Splitting Yummy
Kamen Rider eps. Destruction, A Reason, Unagi Whip
Kamen Rider eps. A Red Medal, A Detective, A Betrayal
Kamen Rider eps. Decoy, Qualifications, Flaming Combo
Kamen Rider eps. Hopper, Parent and Child, Hero
Kamen Rider eps. Choco, Conviction, Power of Justice
Kamen Rider eps. Beauty, Egg, Dormant Desire
Kamen Rider eps. Memory, Love, Sea Combo
Kamen Rider eps. Boxer, Left Hand, Bird Yummy
Kamen Rider eps. Ankh, Ring, Pile on Everything
Kamen Rider eps. 1000, Movie, Combatant
Kamen Rider eps. 1000, Kamen Rider, Birthday
Kamen Rider eps. Older Sister, Doctor, The Truth About Ankh
Kamen Rider eps. King, Panda, Memory of Flame
Kamen Rider eps. Repaying a Favor, Scheme, Purple Medals
Kamen Rider eps. A New Greeed, Void, Unrivaled Combo
Kamen Rider eps. Friendship, Out of Control, Left-Behind Belt
Kamen Rider eps. Best Friends, Using, That Relationship
Kamen Rider eps. Dreams, Brother, Birth's Secret
Kamen Rider eps. Broken Dream, Body, Greeed Revival
Kamen Rider eps. Sleep, 100 Million, Birth's Employment Shift
Kamen Rider eps. A Situation, A Parting, A Tearful Birth
Kamen Rider eps. Nightmare, Surveillance Camera, Ankh Strikes Back
Kamen Rider eps. Control, Birthday Party, Ankh Disappears
Kamen Rider eps. Siblings, Rescue, Eiji Leaves
Kamen Rider eps. Ice, Greeed Form, Broken Wings
Kamen Rider eps. Vulture, Antagonism, Ankh Returns
Kamen Rider eps. All Members Together, Full Revival, Your Desire
Kamen Rider eps. Surprise Attack, Proto Birth, Desire for Love
Kamen Rider eps. Eiji Greeed, W Births, Ankh's Desire
Kamen Rider eps. Red Days, Fulfilled, Eiji the Container
Kamen Rider eps. Tomorrow's Medals, Underwear, A Grasping Hand