Ryotaro and the Imagins find themselves in November 2008, where the DenLiner is stolen by Kaitou Daiki, Kamen Rider Diend. As Daiki tracks his past self, he faces off with Time Police officer Reiji Kurosaki, aka Kamen Rider G Den-O.

Daiki Kaito as Kamen Rider Diend stole the Den-O pass from Ryotaro with the help of an Imagin. Soon after that, Time Police Officer Reiji Kurosaki and the artificial Imagin Eve as Kamen Rider G Den-O suddenly appeared from another point in time to catch him. Ryotaro and the company get involved the deep feud between Daiki and Reiji.