S01E01 Medals, Underwear, and the Mysterious Arm
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.
Kamen Rider OOO
I'll transform!!!
S01E35: Dreams, the Big Brother, and Birth's Secret
Hina tries to work out what her real dream is when she wins a fashion show while Uva tries to work all sides to regain Mezool and Gamel's Core Medals.
Overview
Eiji Hino is a wanderer who has no place to call home and a tragic past. When metallic creatures known as the Greeed awaken after their 800-year slumber to attack humans and feed off of their desires, the disembodied arm of the Greeed named Ankh gives Eiji a belt and three Medals to fight the other Greeed as Kamen Rider OOO. The mysterious Kougami Foundation approaches Eiji and begins assisting him in his fight against the Greeed, though their true motives are not clear. As Eiji fights the Greeed and their Yummy monsters, learning more about the Greeed and Ankh, he starts to find a purpose beyond his journey.
Episodes
S01E02 Desire, Ice Pops, and Presents
Ankh explains the Greeed and the purpose of the Medals to Eiji, even as the human desires to merely use his new power to fight for good instead of for selfish needs.
S01E03 A Cat, Evolution, and a Glutton
Ankh becomes troubled when Eiji prevents him from eliminating his possessed body's sister while another Greeed uses a man's gluttony to create more Medals.
S01E04 Doubt, a Picture Message, and a Helping Hand
Ankh threatens to leave OOO for Kazari and the Greeed while investigating the evolution of humanity while Eiji tries to find more about Hina.
S01E05 A Game of Tag, a Nest, and a Rich Girl
Kougami asks for a share of Eiji and Ankh's Medals, while Mezool decides to use Hina's shopaholic classmate to create a new Yummy.
S01E06 Fashion, a Contract, and the Strongest Combo
Hina confronts Yamano's shopping addiction when her father goes bankrupt while Ankh confronts Kougami about his share deal of the Cell Medals.
S01E07 A Lousy Husband, a Trap, and a Jackpot
Eiji tries to research a husband bullied by his wife that is being mocked by Gamel while Ankh follows a lead for a missing Core Medal.
S01E08 Sabotage, Unselfish, and Taking a Break
Eiji gets to the root of the Komoris' problem involving greed and loss of ambition while Ankh fights for survival after a failed confrontation with Uva.
S01E09 Drenched, the Past, and the Scorching Combo
A serial bomber tied to a nest of Yummies leads to Eiji to reveal his past to Hina and forces him to encounter a strange man he believes is Mezool's victim.
S01E10 A Fist, an Experiment, and a Super Bike
Eiji must figure the means of stopping the mad bomber and his Yummies to prevent any more lost lives, even with Maki observing the creation of his worker's monsters.
S01E11 The Traveler, a Swallowtail Butterfly, and a Celebrity
Eiji's traveler friend becomes manipulated by Uva into becoming famous as he steals others attributes; while Gotou doubts Eiji's effectiveness as OOO.
S01E12 An Eel, the World, and the Gravity Combo
Eiji teaches a lesson to Tsukuba and Gotou about going forth to gain what is desired; while Ankh tries to figure a way to manage the flying Ageha Yummy using Gamel.
S01E13 A Siamese Cat, Stress and the Genius Surgeon
Ankh becomes sick of dealing with the problems of working with Eiji as Kazari targets a famous surgeon who believes she is not getting the treatment she deserves.
S01E14 Pride, Surgery, and a Secret
Eiji rushes to find Ankh to save Shingo's life while Tamura discovers the truth about what it means to be a surgeon.
S01E15 The Medal Struggles, the Transporter, and the Vessel
Kazari uses a transport truck of Cell Medals, a Core Medal of Ankh and a captured Hina to lure all sides into a free-for-all showdown.
S01E16 An End, the Greeed, and a New Rider
Maki and Kazari experiment with Gamel in determining the use of a Greeed for a Core Medal container as Eiji approaches Kougami in finding out more regarding the artificial beings.
S01E17 The Kendo Girl, Oden, and the Splitting Yummy
Eiji and Ankh try to figure out Akira Date, the man who has become Kamen Rider Birth, as Uva creates a peculiar Yummy from a kendo girl who wishes to be stronger.
S01E18 Destruction, Motives, and the Eel Whip
After a second Yummy splits off from the original with a different motive, Eiji and Akira must work to figure the true desire Rie held in order to figure how to truly destroy the creation.
S01E19 The Red Medal, the Detective, and Betrayal
Kazari creates an "evolved" Greeed using the desires of a convict to get back at a traitorous hoodlum and Shiro in order to pursue Ankh.
S01E20 The Decoy, Quantification, and the Flaming Combo
After being abandoned by Ankh desiring the return of one of his Core Medals from Kazari, Eiji is found by the cowardly hoodlum Yasu while he continues to ponder if his partner can really be...
S01E21 The Grasshopper, Father and Son, and the Ally of Justice
Uva uses the desires of a troubled father to serve justice for the sake of his son to create a Greeed that assist him in creating this desire.
S01E22 Chocolate, Faith, and the Power of Justice
Eiji and Shintaro work to try and stop Susumu and his son from going too far as they use the power of their Yummy to attack greater targets for the sake of justice.
S01E23 Beauty, an Egg, and the Sleeping Desire
Akira decides to bond with Eiji to investigate his travels while Kazari slowly awakens the sleeping desires within the scientific sister of a beauty company president.
S01E24 Memories, Love, and the Marine Combo
As Eiji becomes smitten with the elder Yumi sister, Akira tries to reach out to her sudden obsession with being the most beautiful under her awakened desire.
S01E25 The Boxer, the Left Hand, and the Bird Yummy
Ankh starts acting suspicious when a new bird Yummy emerges created to help a washed-up boxer stand in the ring once more.
S01E26 Ankh, the Ring, and Placing Everything On
Akira and a worn-down Eiji work to stop the Yummy before the worn-out Okamura stands in the ring once more against his rival.
S01E27 1000, the Movie, and the Combatmen
Kougami commands the cast to make a Kamen Rider movie in celebration of the franchise's 1000th episode, leading to a surviving Shocker Combatman to gain a Yummy for his revenge.
S01E28 1000, the Kamen Riders, and the Birthday
As the movie continues to have complications, Sendou discovers the prices of making a deal with an enemy who takes advantage of his pride of who he is.
S01E29 The Big Sister, the Doctor, and the Truth about Ankh
Eiji investigates the truth regarding who Ankh is, while Kazari decides to create a Yummy from Maki's desire to see what he's really made of.
S01E30 The King, the Panda, and the Flames of the Memory
Eiji and Akira force Ankh to reveal the truth about OOO and his incomplete revival, while Maki reveals to Chiyoko the connection with his older sister.
S01E31 Gratitude, Scheming, and the Purple Medal
Hina's friend asks Eiji to help discover who has been helping paying her family money anonymously, while Maki reveals a shocking discovery he took from Kougami.
S01E32 The New Greeed, Emptiness, and the Invincible Combo
The truth behind Eiji's philosophy on life is revealed as he becomes the container of the mysterious Purple Medals and faces an assault of new dinosaur-based Yummies.
S01E33 Friendship, Chaos, and the Belt Left Behind
Eiji is summoned to a park owned by a former school friend who wants to be a greater help to his dreams.
S01E34 The Best Friend, Uses, and Their Relationship
Eiji confronts Yuichi about his desire to be the only one to be there for him, even as his Yummy continues to abduct Eiji's allies.
S01E35 Dreams, the Big Brother, and Birth's Secret
Hina tries to work out what her real dream is when she wins a fashion show while Uva tries to work all sides to regain Mezool and Gamel's Core Medals.
S01E36 Broken Dreams, the Body, and the Greeed Resurrection
Ankh tries to figure his position with Shingo's sudden reawakening and the difficulties with the return of Mezool and Gamel while Eiji tries to deal with the dream-shattering Yummy.
S01E37 Sleep, One Hundred Million, and the Birth Transfer
Gamel and Mezool work together to create a Yummy that make people tired but sleepless while Shintaro confronts Akira about the bullet in him and its effects as Birth.
S01E38 Circumstances, Farewell, and a Tearful Birth
Eiji tries to deal with Akira as he joins with Maki and the Greeed while Shintaro tries to figure some way of winning Birth back to their side.
S01E39 The Nightmare, Security Cameras, and Ankh's Revenge
Ankh worries about his future and the assault of his other self while Chiyoko declares war on a security-obsessed household possessed by a Yummy.
S01E40 Control, a Birthday Party, and the Disappearing Ankh
As Yumemi becomes a police-state controlled by the Shimoda family and their Yummy, Eiji tries to prove to Ankh on whether or not he is still needed around.
S01E41 Siblings, the Rescue, and Eiji Leaves
After Ankh is taken back by his body, Eiji becomes resolved to bring him back even with no longer wanting Hina and Shingo involved in this battle.
S01E42 Ice, Greeedification, and Broken Wings
Doctor Maki approaches Eiji about the truth of the Greeed, themselves and the Purple Medals within them while working with Ankh to regain his final desire.
S01E43 The Vulture, the Confrontation, and Ankh Returns
Although finally restoring himself, Ankh retakes Shingo's body and decides to start collecting Medals for himself even as Eiji tries to stop him.
S01E44 Everyone Together, the Perfect Resurrection, and Your Greed
Kougami reveals the importance of Eiji as the container and the danger of the Purple Medals, while Ankh unites the Greeed in an effort to stop him and retake their Core Medals.
S01E45 The Surprise Attack, the Proto Birth, and the Desire of Love
Eiji and Shintaro invade Maki's mansion in hopes of reclaiming the Medals, while Mezool continues to ponder the truth of emotions to a increasingly disgruntled Ankh.
S01E46 The Eiji Greeed, the Double Births, and Ankh's Desire
Gamel rampages thinking that he can still revive the dead Mezool, while Ankh realizes his true desire even with Eiji now standing in his way.
S01E47 The Red Crack, Satisfaction, and Eiji's Vessel
Eiji's realization of desire and his Purple Medals forces him to take anything in his way, including Ankh and a final offer from Kougami to become the OOO Vessel.
S01E48 The Medals of Tomorrow, Underwear, and Arms Held
Having finally taken the burden to becoming the true OOO, Eiji fights to prevent Doctor Maki from realizing his "perfect end" while working to reach his ultimate desire of being there for others and having...
Cast
Shu Watanabe
Eiji Hino / Kamen Rider OOO
Ryosuke Miura
Ankh / Shingo Izumi
Riho Takada
Hina Izumi
Asaya Kimijima
Shintaro Goto / Kamen Rider Birth
Takashi Ukaji
Kousei Kougami
Mayuko Arisue
Erika Satonaka
Hiroaki Iwanaga
Akira Date / Kamen Rider Proto-Birth
