Realizing how the Zenkaigers could threaten Tozitend's conquest, the latter's technical officer Ijirude transforms a Kudakk foot soldier into the monster Kinoko World using the Kinokotopia Toziru Gear. Kinoko World sprouts mushrooms across the city before Kaito and Juran confront him, though he manages to escape. At Secchan's suggestion, the Zenkaigers decide to recruit others to their cause. They find little success until they cross paths with the animal-loving Kikainoid Gaon. After Kinoko World starts using poisonous mushrooms, Gaon joins Kaito and Juran to stop the monster. They succeed, but Tozitend deploy a giant Kudaitest foot soldier and empower it with Kinoko World's Toziru Gear. Juran and Gaon enlarge to fight the giant, with Kaito fusing them into the mecha Zenkaioh so they can destroy it and free Kinokotopia. After introducing Gaon to Yatsude, Secchan demands the Zenkaigers find more recruits.