Previously on Multiverse Desire Grand Prix...

Comai: "We are already at the end of the game and only one can make their ideal world."

(Scene Change)

Comai: But this Boss is really difficult to understand. It predicts all our attacks.

He then stops recording and enters the lounge.

Kairi struggles to leave the room.

Comai: Kairi!

Mako: Kairi! What are you doing? You should be resting.

Kairi: The Jyamato horde has my sister!

Opening

https://youtu.be/3776FwgJKpw

(Instruments) The Desire Grand Prix logo appears and spins around to show it as a Desire Card.

(Invitation todoita Nara Open up the dungeon nozomi wa nani?) Comai was chained up in barbed wires. He looks up and changes into his Geats Magnum Boost form.

(Sanka nara No Claim Dare ga naru no? Ace (Get Ready?) Shut it down, Hikikaesenai) Tsumuri shows up with a smile, as it rains in the background. She walks to Comai and presents him with the Desire Driver and ID Core.

(Hateshinaku tsudzuku inochi no rasen Jikū mo tsukinukete Subete tokihanata reru made) Comai walks in his cosplay of Ukyio Ace while the sky was shifting from day to night in seconds.

(Shihai yoku? Mata wa Diamonds? Love & Peace? don'na yabō mo) Epithymía looks up at the ceiling in the Desire Temple and holds a grasp in the air. Many hands grab Desire Drivers.

(Sekai wa kimi no omoidōri) Kairi, Mako, a static blackhead, a static blackhead, Ren, a static blackhead, and Comai show in their Desire Grand Prix outfits with silhouette riders behind them.

(Come on! got to go the next round Kachi kitte misete) Comai in his Entry Form uses Boost and Magnum Buckles to transform into his Magnum and Boost form.

(Unmei no shunkan o standby Sorezore ga daku drama) Geats ride on Boostriker while many different colored hands try to grab him, all before it transforms into its fox form.

(Trust・Last)

(Furiotosaretara soko de Drop out (Wow) Geats shoots Magnum Shooter 40X at the screen shattering it. The screen then shows the scoreboard of many Kamen Riders along with the main characters.

(Dareka o kizutsukete shimatte Kizutsuite orarenai game) Kairi appears with a serious expression with his Tycoon Entry Form in a fighting stance with Chrome and Kazuma next to him, Mako appears with a cute smile with her Na-Go Entry Form doing a cat pose with Aoi next to her, a static blackhead with Mary Entry Form pumps her arm up with three static bodies behind her, a static blackhead with Ginpen Entry Form in a fighting stance with a static body next to him, Ren appears staring with a stoic look with his Buffa Entry Form cracking his knuckles, a static blackhead with Da-Paan Entry Form crouching down with three static bodies behind him.

(Trust・Last)

(Mune ni wakitatsu yokubō hi o tsuke (Go for the WIN!) Comai appears doing a gun pose with his Geats Entry Form doing a highlight pose. The Desire Gand Prix symbol appears before them.

(Azamuki kazamuki yomitori Mata te o kumi uragiri Kitai to negai akiramenai) Comai pulls the barbed wires as Geats revolves and shows many upper-half forms.

(Kachitotta yume no naka de Tell me Nani o mitsukeru?) Geats stare at the coast. The title shows: Kamen Rider Geats: Multiverse Desire Grand Prix.

Back to the Story

Kairi: I have to go out there-

He then fell, but his supporters caught him.

Kairi: I already lost my father... and my mother left us... I can't lose my sister.

Kairi's supporters help him to the couch.

Comai: I think we should forget about the game and just save the people. 

Everyone then looks at Comai.

Comai: The Boss is able to follow our tracks. One has to be the distraction while the rest can get the can.

Ren: As if. I'm not losing because of that.

He then leaves the room.

Mako: I can't help either. As much as I want to help, I don't want to lose.

She and Aoi then left the room.

Kairi: I'll go along with your plan.

Comai: Are you sure?

Kairi: I don't care about winning either. I just need to save my sister.

(Scene Change)

The Boss Jyamato has based itself near a school with a tall beanstalk next to it with people lock on it like beans.

Comai and Kairi base their selves facing the monster.

Comai inserts his Magnum Buckle. Kairi inserts his Arrow and Boost Buckles.

Set!

Comai & Kairi: Henshin!

Comai revolves the barrel and presses the trigger.

Kairi pulls the arrow and twists the handle.

Duel On!

Magnum upper half appears and a mechanical hand pulls it onto Geats.

Magnum!

Arrow appears on the right side of Tycoon and Boost lower half appears on his left and a mechanical hand pulls it onto him.

Boost! Armed Arrow!

Ready? Fight!

Tycoon: I'll distract it. You get ready.

Geats: Okay.

While Buffa and Na-Go face off against the foot soldiers, Tycoon rushes at the Boss Jyamato alone with Geats and Tycoon's supporters waiting.

Tycoon draws its attention by shooting at it with arrows while running in circles. But in the end, the Boss Jyamato predicted his move and strike at Tycoon to stop him.

Tycoon struggles to get back up.

Geats watch as incoming needles head toward Tycoon. He then takes out Ninja Buckle and pulls the kunai. The shrunken then spins and flies away.

As the needle made contact with Tycoon, they caused an explosion

Then all of a sudden, Tycoon came in with...

Ready? Fight!

Geats: I knew it!

Chrome: Knew what?

Geats: Ninja Buckle has the power of a ninja hero, otherwise known as shinobi.

(Flashback)

Geats made Ninja Buckle fly to Tycoon. Ninja inserts itself into Tycoon's right side of his Desire Driver.

Ninja!

Ninja upper half appears and a mechanical hand pulls it onto Tycoon. Pushing Arrow aside.

(End of Flashback)

Geats: The power of the shinobi senses the hero within a player and chooses to follow him over the player who gains it.

The Boss Jyamato then shoots a Tycoon, but Tycoon dodges the needle shots as he runs inside the school building. Tycoon uses every ninjutsu ever possible to avoid getting hit.

Shadow clones, wood decoys, even elemental disappearance.

Then Tycoon inserts Boost into the empty slot of his driver.

He then twists the handle.

Duel On!

Boost lower half appears on above a hole in the building and a mechanical hand pulls Tycoon onto the armor.

Ninja and Boost!

Ready? Fight!

Tycoon then rushes and climbs on the Jyamato Boss, he then spins the disc of his Ninja Dueler.

Round 1! 2! 3! Fever

Tactical Slash!

Tycoon slices the needles as he runs and shrunken flies around him. He then pulls the kunai and twists the handle.

Boost Time!

Tycoon then jumps and rides on his Ninja Dueler spinning really fast. He then makes his way toward the beanstalk and takes his position in Rider Kick as he twists the handle again. 

Ninja! Boost! Grand Victory!

He then destroyed the beanstalk. Freeing the people trapped.

Tycoon: Now! Go for it!

Geats then rush toward the can and kick it into the sky. But the can heads toward a building, Buffa jumps toward the can and hits it with his claw, then Na-Go kicks the can out of the Jyamar Area.

The Boss Jyamato then disappeared too.

Geats then revert back to his normal form as Boost flies away.

Comai then sees Kairi lying on the ground.

Kairi: Did we win?

Comai: Yes. You saved the people and most importantly... your sister.

Kairi: Thank goodness.

Epithymía and Tsumuri came up to the gathered Kamen Riders.

Epithymía: I'm here to announce that... Kairi has taken too many injuries to continue participating. I don't normally give the exception, but I will allow your supporters to change who they support.

Chrome: No thanks. I just want to go home. To my friends. My family.

Epithymía: Very well.

Chrome then phases blue with a smile and disappeared.

Retire!

Epithymía: Now, Kazuma... What do you wish? Continue to play by changing the Rider you support or return to your homeworld.

Kazuma: I choose to support, Geats.

Epithymía: Very well.

Tsumuri: To this day, Sato Kazuma will support Geats throughout the game. While Kairi Sawada is declared disqualified by default.

Kairi: So does that me I get to return to my sister?

Tsumuri: Precisely.

Kairi: I understand.

Comai goes up to Kairi.

Kairi: I couldn't do this without you.

Comai: It was a team effort.

Kairi: Please.

Kairi hands Ninja Buckle to Comai. 

Kairi: Win for all of us.

Comai kindly takes it back.

Comai: I will.

Kairi's ID Core disappears and then he phases away.

Retire!

Epithymía then takes the driver that had dropped to the ground.

Epithymía: The fate of the world rests on your shoulders... Geats.

Desire Rules:
In emergency situations such as
injury or illness, participants who
are unable to continue will be retired
along with their supporters with the
exception from the Game Master himself.

To be continued...