The finals of the Desire Grand Prix are underway when Keiwa Sakurai, a man down on his luck after a failed job interview, is caught in the midst of things.

Ace has won the Desire Grand Prix and the entrants for the next series assemble as they are tasked to go on a treasure hunt.

Neon is asked by her mother to quit her successful streaming channel when a new zombie round of the Desire Grand Prix begins; Ace and Michinaga have a bet on who will do better in the next round.

With Kanato and Neon infected, and tensions surrounding them high, the remaining contestants prepare for the finale wave of the zombie round.

Michinaga's job has him renovating Ace's house when they are called in for round three of the Desire Grand Prix: a duos battle that resembles a concentration-like card game.

In the midst of the duos round, the others find out that Morio is a wanted criminal as he proposes to Michinaga a change in partners.

Keiwa rediscovers childhood memories of what he wanted to be when he grew up; the final boss of this Desire Grand Prix has appeared, who has left previous games with no winner.

Keiwa's sister calls with news of a monster attack, but before the Kamen Riders can finish the round, Keiwa learns a shocking truth about his past.

Kicking the can becomes near impossible, bringing forth a new side-quest of hatching eggs.

Ace gets another wish for winning the Desire Grand Prix, now competing with a brand new set of competitors in a new game. A game which includes the staff controlled Punk Jack from last game.

The second round of this game has begun, transporting the players to an alternate dimension where they must each escort a civilian, with Keiwa being among the group of civilians.

While the players must figure out a Jyamato password to leave, Keiwa rediscovers his desire for a better world.

A mysterious girl appears to all of the remaining contestants, forcing a competition to reclaim their drivers.

Win and Ace both still lack drivers in order to continue in the Desire Grand Prix, while the Gamemaster takes things into his own hands.

It's time for Keiwa, Neon, and Michinaga to compete in the Desire Grand Prix finals, but things feel odd with Ace not here with them.

Keiwa and Neon are told that the next round is a hunt to take out Ace, but they and Tsumuri struggle with the gamemaster's decision for this illegal game.

A new gamemaster is in place and a new Desire Grand Prix is set in motion that sees the contestants living together to find a spy among them.

The contestants learn that they must vote on who the DisaStar is, and they will be ejected, no matter if they are the spy or not; Jamato arrive to compete in a sports game against the contestants.

The contestants continue their ball game as the time ticks away to place votes for the DisaStar.

A new game begins that involves the Jamato delivering bombs.

Sae must save her family from a bomb while Beroba puts together her own anti-Kamen Rider team.

The Jyamato haven't been sent out in a while, so a new game begins against the Gamemaster - a game of tag.

Beroba has taken Chirami's Driver, rendering the current round of the Desire Grand Prix null.

Ace, Keiwa and Neon talk with their supporters as the Desire Grand Prix is put on hold and replaced with a special episode.

Beroba starts up her own Jamato Grand Prix, but the Desire Grand Prix contestants refuse to sit idle as the Jamato run loose on the city.

A local festival is canceled due to frequent reports of Jamato attacks, even though a young boy was looking forward to it so that he could wish his mother well again.

The second game of the Jamato Grand Prix is underway as Keiwa and Neon are turned into enemy combatants for their Sengoku-style contest; Ace is feeling sleepy after using his new Crimson Boost.

Beroba continues her Sengoku game as Ziin comes to a realization after he and Ace almost die.

It's Neon's birthday and her supporters want to throw her a birthday party, but Beroba has other plans and starts by luring Keiwa into a game.

Neon's struggling with the reveal about her past with Beroba targeting her to compete next.

Neon has gone missing while Beroba plots the final round of the Jamato Grand Prix and Buffa's victory.

Archimedel turns on Beroba, claiming that he is the biggest Jamato supporter; Ziin returns with words for Ace.

Ace and Keiwa have gone missing and Michinaga now has his wish of the power to wipe out all Kamen Rider.

Daichi asks Neon and Sara for a truce when Sara meets her mysterious supporter.

Niramu and Win are back and the staff plans to pick up and go to a different era.

Win and Tsumuri go through the Desire Grand Prix archives as the contestants participate in a useless battle.

Sueru plans to replace Mitsume as the Goddess of Creation.

The Desire Grand Prix staff has left, but the competitors still have their memories intact and the Jamato are still on the loose.

Sara goes missing after bumping into Daichi during a Jamato attack.

Keiwa is a wreck over losing Sara while Daichi sends the world into panic over the Jamato.

Keiwa has taken Tsumuri and the staff plan to use her to create a new Goddess.

Keiwa gets his ideal world of every competitor returning granted, but it comes at a price.

Neon's dad starts treating Neon like his actual daughter; Tsumuri refuses to be the next Goddess.

Beroba recruits DaPaan to be a Rider again while Ace prepares to face Keiwa.

Ace remakes the world back to before Keiwa's wish.

Kekera wipes out all other Kamen Riders to teach Keiwa a lesson.

"Let the game that leads to the destruction of this world, begin." No matter what, a dangerous game that threatens peace must be stopped. Ace and the others transform into Kamen Riders to confront their troublesome "enemies"! And the situation will come to an end in the most unprecedented way ever...

Tsumuri points her Magnum Shooter 40X at Ace... and a gunshot rings out! Was Ace shot?! A world where everyone can be happy, just what is Ace's true wish? For that... we witness the end!