Akiko Narumi arrives in Futo to be the landlord of the "hard-boiled" detective Shotaro Hidari, who finds himself involved in a case involving a former female love and a Dopant on the attack.

After his missing target is killed by another Dopant, Shotaro works with his partner Philip to figure out the truth regarding the killer while being dogged by Akiko and her strange sightings.

Shotaro is hired to save a girl from a legendary casino who offers ultimate riches for victory… and ultimate penalty for loss.

Tracking down the legendary casino, Shotaro must defeat it’s Dopant owner as Philip deals with a crisis hindering his mental abilities.

Tracking down the legendary casino, Shotaro must defeat it’s Dopant owner as Philip deals with a crisis hindering his mental abilities.

Shotaro debates the cost of keeping up Asuka’s belief Double is her father as Museum steps up their motive in protecting their Gaia Memory factory.

Philip chases after a street dancer key to a locked memory, while Shotaro pursues a cockroach avenger taking out hired victims.

As several of Double’s Gaia Memories are taken by the Cockroach Dopant, Shotaro tries to find his true identity while Philip tries to reunite the dance partners for their legendary move.

Akiko gets a job as a maid for the Sonozaki family in order to investigate a Dopant abducting pastry chefs.

Shotaro gets embroiled deeper in the Sonozakis connection to the Dopants as Akiko attempts to find the criminal behind the patisserie abductions.

Shotaro decides to help an underworld gang after a member is killed by a Dopant-possessed car.

When the search for the Virus Dopant takes an unexpected turn, Shotaro and Philip must work to find the true controller and the reason behind their grudge.

Shotaro and Philip investigate a Dopant stalker causing chaos in order to impress Wakana.

As Shotaro continues to try and lure out Wakana’s violent stalker, Philip continues to get unusually close to the radio-broadcasting Sonozaki.

A suspicious woman hires Shotaro to find a Dopant who is running amuck while taking the name “Kamen Rider” as his own.

Discovering a horrible secret from Saeko and seeing his partners captured by Arms Dopant, Philip must figure a way to save them even if using the unstable Fang Memory.

When Shotaro is hired to find the daughter of his barber, he discovers horrible new developments regarding the Gaia Memories.

As Shotaro and Philip discover the truth regarding the teens using the Bird Memory, Kirihiko discovers the truth behind Museum and his usage by the Sonozaki family.

The new leader of Fuuto Police’s Dopant investigation division uses Shotaro to track down a Dopant attacking victims with ice.

As Ryu’s intensity and Kamen Rider Accel powers threaten to harm innocents, Shotaro and Philip must discover the reason behind his anger while putting a stop to the ice-powered Dopant.

Makura involves Shotaro in a case in rooting out a traitor within the Fuuto police leaking out information on the Gaia Memories.

Aya tries to gain Shotaro and Ryu’s trust in using her Dopant power to be an asset, hiding her true intentions and desires of her situation.

A request from Queen & Elizabeth leads to an investigation of a terrible street performer mysteriously winning a popular singing competition.

While trying to figure a means to defeat the tricky Liar Dopant, Shotaro confronts Jimmy about his confidence and trust in his female fan.

Akiko is asked by a little girl to find her lost doll, which has been terrorizing targets throughout Fuuto.

As Horinouchi is taken by the bizarre Dr. Isaka for further usage, Akiko tries to decipher the meaning of the doll and the truth behind Horinouchi’s daughter.

A ditzy female magician who turns invisible asks Shotaro to find the seller of her Gaia Memory, which ultimately leads Terui to the man who killed his family.

Akiko and Philip desperately try to stop Terui from taking immediate revenge on Shinkuro when he becomes key to saving Lily from her deadly Gaia Memory.

Shotaro accepted a request from a girl fearing a Dopant who attacks it’s victims in their dreams which it can control.

As Philip is taken by the Xtreme Memory to meet with Shroud, Shotaro continues to try and figure a way to discover the culprit behind Nightmare Dopant’s attacks.

A mob friend of Soukichi asks Shotaro to help him settle an old score and get back what he returned to Fuuto for.

While under pressure of being abandoned by Philip as his Double partner for not keeping up, Shotaro tries to decipher the truth behind Bitou’s framing.

Shotaro decides to help a peculiar woman find her lost cat while Terui investigates people committing strange actions beyond their control.

Shotaro fights to prevent Yukie from joining the Museum for the sake of herself and of the memory of her deceased brother Kirihiko.

As Shotaro is asked to pursue a young teacher by her students, Terui also goes after her due to a remarkable similarity between her and his deceased sister.

Terui must master the Trial Memory in order to save Nagi from Shinkuro, who has made his move with Saeko for Ryuube’s downfall.

Shotaro is hired to find a mysterious man’s family, while Philip is confronted by Wakana about her position in the Museum with her sister gone.

As Terui tries to gain more information regarding Yamashiro’s knowledge of the Museum, Philip contemplates leaving Fuuto forever with Wakana.

Shotaro is brought in to help a movie-theater worker who has unwittingly become the star of an epic others are forced to watch.

As Akiko desperately tries to complete Tooru’s movie, the insular director is targeted by Wakana to allow her access to the full potential of her Dopant power.

Jinno asks Shotaro to help him find a cold-hearted, diamond-obsessed woman who set him up for arrest.

Shotaro fights to save Rui from destroying herself, while Philip tries to figure out how to outsmart Wakana in gaining his library research.

Shotaro and Terui are asked by a mother to save her daughter, who has been turned old to satisfy a grudge hit as Shroud approaches Phillip and Terui, wanting them to become Kamen Rider Double Cyclone Accel Xtreme.

Terui tries to decipher the truth regarding Shroud and her intentions as she tries to force him and Philip to join together into the ultimate Double to defeat Ryubee. Meanwhile, an agent of Foundation X takes possession of the new Gaia Memories…

A request from a worker at the Fuuto museum forces Shotaro to find an artifact required by Ryuube for his final master plan.

With Shotaro gripped by fear and Terui injured, Philip is at the mercy of his father Ryuube, who prepares to use his son and Wakana to bring about Gaia Impact.

Philip chooses to ask Shotaro to help him find Wakana, so he could see her one last time, as she is being held by Kazu for Foundation X’s own plans.

Shotaro and Philip must endure the ultimate hardships to stop Kazu from completing his own Gaia Impact in order to complete what could be their final case together.

One year after Philip’s departure, Shotaro continues onward alone, but a case involving saving a boy’s sister from Dopant bullies brings forth a change for the better.

The new school year begins at Amanogawa High School, and Kengo Utahoshi is detecting strange energies around the school. And things get stranger when yankee-looking Gentaro Kisaragi transfers into the school and decides that he wants to be Kengo's friend.

Kengo reveals to Gentaro that he must turn off the Zodiarts Switch used by the person who activated it in order to truly defeat a Zodiarts. As Gentaro and Yuki search the campus for the owner of the Zodiarts Switch, she begins to tell Gentaro more about Kengo and how he came to have the Fourze Driver and the Astroswitches.

When the annual Queen Festival comes around, Gentaro decides if he wants to befriend Miu Kazashiro, he must convince Yuki to enter a talent contest that Miu wins every year and beat her.

Gentaro decides to help Miu retain her title as Queen and Fourze goes after the Chameleon Zodiarts to protect Miu.

While Miu intergrates herself with the group, JK finds himself being targeted by a Zodiarts and Gentaro finds a new Astroswitch difficult to use, the Elek Switch.

Gentaro finds out that JK was just using him for protection against the Zodiarts and has stolen the Elek Astroswitch but Gentaro is determined to show JK the power of frienship and help JK despite being tricked by the other.

Kengo, Yuuki, and Gentaro are forced to take supplementary lessons on a Sunday due to missing classes whilst defeating Zodiarts. Meanwhile, Shun grows angry with the Kamen Rider Club and Miu's involvement with them. JK and Miu try and hold down the fort whilst the others are in class.

Gentaro, Miu, JK, and Yuuki continue to track down the Hound Zodiarts, and Shun decides it's time to make his own choices about his friends and school activities.

Tomoko tells the group that the end of the world is coming- and that she will become the Luna Witch. When three witches and Tomoko start performing magic around the school the Kamen Rider Club must find out whether this is witchcraft or actually a Zodiarts.

Tomoko must decide whether to use a Zodiarts Switch to get her wish or help the others defeat the Zodiarts currently rampaging through the school.

Yuuki is targeted by a Zodiarts who is obsessed with her. Meanwhile, the locker which attaches the Rabbit Hatch to the school goes missing leaving Kengo trapped on the moon.

The Pyxis Zodiarts decides the only way to get revenge is to use his power to kill all the girls who rejected him, including Miu, by driving a bus with them all inside off of a bridge. Meanwhile, Kengo is still trapped in the rabbit Hatch.

Gentaro and the others decide to bring back those students who were Zodiarts to the school, starting with Toshiya Miura.

To save Miura from using a Zodiarts Switch again Gentaro must go up against one of the Horoscopes, Scorpian, a commander Zodiarts.

Yuuki is invited to join the Glee Club for a performance for the Kindergarten Class, however, her singing disrupts a fellow student in possession of a Zodiarts Switch.

The Perseus Zodiarts seems to be too powerful for Fourze to stop on his own, however, the appearance of the new Kamen Rider Meteor may change this battles ending...

After Kengo reaches a dead end in finding out the identity of the mysterious new Rider, Sonoda-sensei introduces new transfer student, Ryuusei Sakuta.

Ryuusei tries to gain membership to the Kamen Rider Club to further his own agenda but whilst most of the Club is fine with a new member, Gentaro is against Ryuusei joining...

Kengo has a fight with Gentaro due to his decision to let Ryusei for adjusting the Astroswitch (the reason of fight actually because trying to complete the imperfect Magnets Switch)

Gentaro and Kengo must find a way to overcome their rift before a powerful Zodiarts defeats both Fourze and Meteor.

With Sonoda still absent from the school Gentaro's class gets a new homeroom teacher who is far more interested in Kickboxing than teaching.

Gentaro and the others are convinced that their new Homeroom Teacher is the Zodiarts that is currently rampaging, however, Ryusei figures out that the culprit is not their teacher.

Gentaro and friends hear about a new hero from their classmate Norio Eguchi, who identifies the hero as Cygnus and also happens to be a member of the Ugly Duckling Society, a fan club dedicated to Cygnus. However, this new hero is not as good as he seems...

The gang must race to find out who the Switcher is- before the new 'hero' wipes out Fourze and Meteor to become the sole hero in the city...

Miu and Shun are due to graduate- however, it seems like it might not be smooth sailing as previous Zodiarts return.

Gentaro and the others protect the Prom for their friends who are graduating, while, Miu and Shun deal with the fact that they won't be part of the Kamen Rider Club anymore as they are going to college.

During Spring Break the gang decide to try and make the most of what should be a Zodiarts free time, however, Kijima tries to recruit Ryuusei to his side whilst playing a deadly game with students. And those who don't win are placed into permanent comas.

The Cancer Zodiarts threatens the members of the Kamen Rider Club now that he has attained the Supernova ability. While he still cannot transform, Ryusei discovers that Jiro's condition has taken a turn for the worse.

Gentaro and his friends enter the third-year class headed by Mr. Ohsugi, and Gentaro tries to befriend new first-year students Haru and Ran. However, Haru is given a Zodiarts Switch by the Libra Zodiarts.

Gentaro and the Kamen Rider Club must figure out how to deal with Haru as the Musca Zodiarts and Mr. Ohsugi's discovery of the Rabbit Hatch, along with the latter's confiscation of the 38th Astroswitch.

After the 39th and 40th Astroswitches are developed, Amanogawa and Subaruboshi High Schools hold a test transfer of some of AGHS's students to SBHS, which causes problems when the Aries Zodiarts makes itself known to the AGHS students...

After Gentaro's death at Ryusei's hands, Kengo does not know how to resurrect him as the Aries Zodiarts takes the other Kamen Rider Club members captive. Elsewhere, having betrayed Tachibana, Ryusei is able to talk to the revived Jiro.

The third-year class goes on a field trip to Kyoto where they believe they will be free from the Zodiarts for once, but are ambushed by the Libra and Leo Zodiarts. While there, Kengo meets one of his father's old friends. Meanwhile, a enamored girl is determined to snag Gentaro's heart, and poor Yuki is forced to help...

The Kamen Rider Club must work to stop the Libra and Leo Zodiarts from destroying the last two altars in Kyoto to destroy the city with The Hole's Cosmic Energy. In the process, Kengo finally learns the circumstances of his father's death.

With The Hole gone from Kyoto, AGHS is the focus of its Cosmic Energy and the other Horoscopes will soon be found. An internet radio show started up by the mysterious DJ Gene, soon discovered to be none other than JK, grabs the school by storm. He starts up a musical contest, which grabs the attention of the Kamen Rider Club and a fellow student who turns out to be the Capricorn Zodiarts.

Kamen Rider Fourze must defeat both the Capricorn Zodiarts and the Zodiarts' song that has enraptured the school, but with Cosmicstates out of commission after Gentaro's bond with JK is severed, can he find a way to rebond?

Gentaro, Yuki, Kengo, Tomoko, Ryusei, the student council president Sugiura, the former Pyxis Zodiarts Hiroki Makise, and transfer student Erin Suda are chosen for an astronaut test in a closed environment and endurance test, but Kengo's weak constitution and the arrival of the Aquarius Zodiarts cause trouble for the group.

Yuki passes under suspicious means, while Gentaro tries to convince Erin to not follow the path the Horoscopes want of her, as well as give up her hatred for Yuki.

Acting student council president Sugiura institutes a new set of rules that all students have to follow, severely limiting the freedoms the school initially allowed them.

As the Taurus Zodiarts, Sugiura continues to stifle everyone's creativity, but Ryusei (as Meteor) challenges to a game of golf to get everything back to the way it was, while Gentaro and Yuki try to find out why Yuta had changed.

The Virgo Zodiarts begins attacking other members of the Kamen Rider Club, scaring them away from the club, blocking Fourze from accessing Cosmicstates. However, Tachibana arrives on Earth to show Gentaro a way to fight with other abilities at his disposal.

With most of the Kamen Rider Club taken out of commission the Virgo Zodiarts, Gentaro and Kengo are on their own in their fight against Virgo after Meteor is sent to the Dark Nebula and the others distance themselves from the Club. And things get worse when the new powerful member of the Horoscopes, Sagittarius, appears...

Yuki starts acting stranger than usual, and when strange incidents gets traced back to Yuki, and Yuki somehow transforming into the Gemini Zodiarts, Gentaro begins to suspect something is up.

The Kamen Rider Club work to save Yuki from ceasing to exist as Dark Yuki begins to take her place as the real Yuki.

While celebrating Kengo's birthday, the Horoscopes have located their final member, Pisces, in Ran Kuroki, who has been given the chance to study abroad in America. But after Leo attacks, Hayami gathers the Kamen Rider Club to tell them the truth of what has been happening and prevent Ran from becoming the final Horoscopes.

Ran refuses to give her Pisces Zodiarts Switch that will finalize Gamou's plans, so he sends Tatsugami to take her Switch. Elsewhere, Kengo discovers a secret from the USB drive he found in the late Emoto's office.

With Gamou's scheme with all twelve Horoscopes Switches thwarted, Kengo reveals the truth of his origins to the Kamen Rider Club and his eventually parting with his friends. However, the Horoscopes attack the Rabbit Hutch to kill Kengo, getting the Kamen Riders to desperately fight back to protect their friend, who must go back to the Presenters.

With Kengo's death at the hands of Sagittarius Nova and the destruction of the Rabbit Hatch, a distraught Kamen Rider Club reads the final letter from the Core Child written before his death. A resolved duo of Riders must face the Horoscopes one last time to avenge their fallen friend and stop the Day of Awakening for good.