For those looking for official media or reviews, detailed production notes are available on Kamen Rider Fandom and IMDb .
The narrative follows three key eras connected by a scientist named and a powerful entity known as Diablo :
Ryunosuke arrives in the present day, where Ikki Igarashi ( Kamen Rider Revice ) and Touma Kamiyama ( Kamen Rider Saber ) join forces to stop Diablo. A major emotional conflict arises when Ryunosuke must reconcile with his now-elderly son, Hideo, who resents his father for "abandoning" the family. Climax and Legacy