He will appear in two episodes, starting with the show's upcoming 47th episode titled "2019: The Vanishing Watches", he was summoned by Swartz/Another Decade as Mashin Chaser. Geiz, who met his friend, Go Shijima/Kamen Rider Mach in the Kamen Rider Zi-O the Movie: Over Quartzer, will try to wake up Chase by telling Go's name.
[Additional details: Natalie]