Suel attempted to execute the Grand End, but Ace transforms into Geats IX and remakes the world, with the Kamen Riders all remembering what happened.

With the remaining DGP staff's help, the Jyamato have evolved to be able to parasitize humans. And the one responsible for it is Daichi Isuzu.

Daichi's scheming leads to the death of Sara Sakurai. With his only family gone, Keiwa falls into the depths of despair.

Consumed by the flames of vengeance, Keiwa begins a wrathful rampage, with the jet-black shogun pointing the tip of his blade silently at Buffa.

His wish, made from pure good intentions, revives his family, and Keiwa is satisfied or so it seemed.

Michinaga heads into Keiwa's headquarters in order to take responsibility for what he has done.

Kamen Rider Da-Paan, Kanato Sumida, is approached by Beroba. With his desire to see the world suffer, he is easily convinced to side with the evildoers.

Ace absorbs Tsumuri's creation powers, becoming an entity that's not unlike a god.

After a brief period of peace, Kekera confronts Keiwa to announce the Kamen Rider Game, in which civilians are used as hostages.

The game where victors are given their ideal world, the Desire Grand Prix. Its true nature: a reality show overseen by Suel.