Kamen Rider Season 21
Coin-based homunculi known as the Greeed have awoken from an 800-year slumber! The only hope of stopping them in their pursuit of human desires is a rogue Greeed named Ankh, reduced to the form of a disembodied arm, and the wandering hermit Eiji Hino. Presented with a belt and three Core Medals, Eiji steps forward as the champion of human desire - Kamen Rider OOO!
Episodes
E31Dr. Maki and Kazari try to awaken a brand new Greeed; a man has been unknowingly using Greeed money to pay off an old debt; Eiji gets infected by purple core medals.
E32An x-ray reveals that there should be nothing wrong with Eiji; Date tells the others about the time he previously ran into Eiji; Eiji uses the purple medals.
E33Eiji is forced to use the purple medals again; an old friend from High School invites Eiji to an amusement park where Hina is then kidnapped; a Yummy abducts Date and Gotou.
E34Ankh tells Eiji about what his friend has been doing; a Yummy kidnaps Ankh; Eiji forces himself to use the purple medals.
E35Hina wins first place in a fashion contest and is offered a chance to study in France; Dr. Maki creates a Yummy that destroys people's dreams; Date collapses in battle and Kougami finds an interesting x-ray on his brain.
E36Hina's brother has woken up, leaving Ankh without a host; Eiji discovers Hina destroying all of her clothes after getting her dream broken; Uva revives Mezool and Gamel.
E37Gotou finds Date avoiding his checkup; a Yummy causes people all over the city to suffer from insomnia; Dr. Maki makes Date an offer.
E38Date joins forces with the Greeed; Gotou tries to raise the 100 million yen himself; a new Birth is born.
E39Ankh has nightmares about losing Eiji to the purple medals and other Ankh; a man has set up surveillance cameras all over the neighborhood, trying to force out Eiji and Ankh because they make the neighborhood look bad…
E40The Cous Coussier crew get thrown out of town where they decide to throw Ankh the birthday party for Hina's brother; the Yummy has holed himself up with a human barricade, forcing our heroes to wait until he surfaces…
E41Ankh is absorbed into a single body, but the two halves are still not completely whole; Eiji begins to wonder about his place in the Izumi family's life as Shingo tries to help him out in Ankh's place; Gotou helps Eiji…
E42Dr. Maki explains to Eiji about the process of becoming a Greeed and the dulling of the human senses, leading Eiji to discover that it is already happening to him; a Yummy is trapping people in ice and calling out for…
E43After Ankh's cores were destroyed, he becomes in need of a body and yet again takes the detective's, also realizing that he's different now and creates a Yummy; Hina comes to the conclusion that she's been too selfish…
E44Kazari and Ankh butt heads over who is the leader of the Greeed; Hina and Gotou try to find Eiji's desire so that the purple medals will stop making him go berserk; Hina stops Ankh from taking medals from Eiji, but…
E45With Birth in need of repair, Erika retrieves the Prototype Birth driver in order to make do; because they are at a major disadvantage, Eiji and Gotou decide to go on the offense and attack the Greeed first; the other…
E46Gamel rampages throughout the city trying to revive Mezool with one of her core medals; Eiji washes up on the beach with the purple medals acting up, and before he can find his driver, Ankh shows up to stop him from…
E47Dr. Maki makes Eiji go berserk and fight Ankh when he won't give up the purple medals, but Ankh can't force himself to purposefully hurt Eiji; Ankh believes that one of his medals was broken by Dr. Maki and lets Hina…
E48Eiji receives a present from Kougami; Dr. Maki decides to make Uva the container for the core medals; Ankh returns to Eiji's side as they prepare for the final battle.