First, there was Decade, who was all Riders in one being. Then, there was W, a Rider with two souls. Last time, there was OOO, who transformed using a three medal system. Now... 3...2...1... Amanogawa High School is like any stereotypical American high school located in Japan; it has its clicks, its clubs, and its classes. Gentaro Kisaragi, a student with a reputation as a "bad boy", one day forms a Kamen Rider Club, set to investigate the urban legends created by past Kamen Riders. He joined in the club by Yuki Jojima, a self-professed space otaku, and Kengo Utahoshi, who is in possession of a strange switch-like device called an Astro Switch, as well as a secret base called the Rabbit Hutch and the super-bike known as the Machine Masshigler. Together, they must stop a mysterious red-eyed man who has been giving out mysterious items called Zodiarts Switches, which transform people into constellation-themed monsters known as Zodiarts. Kamen Rider Fourze Episode 1 "The Youth Trans-Forms" 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.