I don't own Yu-Gi-Oh!, Kamen Rider, or any of the characters or media put here.

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(End at 1:02.)

After Tsukasa's death, his spirit was seen flying in a space time tunnel.

Tsukasa:Looks like I can finally rest in peace. ...Hm?

Then he saw that the tunnel was filled with many images of humans battling with other humans and other beings by summoning creatures ranging from Demons, Spellcasters, Machines, Fairies Dragons, and even Gods.

Tsukasa:Th... This is... What is... all of this...?

Then he saw that his body was glowing with rainbow aura and he was flicking in and off constantly

Tsukasa:Wh... What is... happening to me...?

FLAAAAAASH!

Tsukasa:GAH-!

His spirited bursts into a massive rainbow colored orb.

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Late at night in Japan, there is a two story house where a 5 year old Judai Yuki wearing red pjs was sleeping...

???:GAH!

...then woke up with sweat on his face.

He looked around then at his hands, then thought,

Judai:I...I remember. I am... I was Tsukasa Kadoya. A passing by Kamen Rider. One of the strongest Riders in the multiverse. I was fighting Ohma...to save the multiverse and all of the timelines...and he... he defeated me...! But... Tokiwa...! Shit...! Did Tokiwa...?!

He closed his eyes and focused on making a small Aurora Curtain in his hand. When he did, he saw the battle between Sougo and Ohma.

While it took a lot of effort on the young Time Rider's part, he had finally defeated him.

Judai smiled and let out a sigh of relief.

Judai:Great job kid.

Then he made the Curtain disappear in his hand and he thought,

Judai:But now that I'm here, Can I...?

He tried summoning his Neo DecaDriver and Booker, but he could not.

Judai:So... I am no longer Decade.

He thought a bit sullenly. But now being honest with himself, he was kind of okay way that. He loved being Decade and the power that came with it, but at the same time, it was also a massive burden on him.

Constantly going to A.U. to A.U., to on one Earth or an entirely different planet to the other to be judge, jury and executioner, it was driving him insane. Or a lot more insane that he already is.

And most of all, Narutaki and his "Onore Dekeido!" bullshit.

Seriously, that man has too much of a  hate boner for him.

But then, he had another thought.

Tsukasa:I may not be able to turn into Decade, but do I still have...them...?

He opened his hand and on his bed appeared all of his Rider Cards. From 1go to 01, as well as all of the copies of the Second, Third, Fourth, Extra & Evil Riders of Heisei and 01 that he had "borrowed" from Daiki.

He still has the cards, but he doesn't know what to do with them. He can't use them to transform, but he simply cannot get rid of them either as that would be the greatest disrespect to the Riders before and after them.

So, what to do?

Judai: 💡...!

He had an idea.

He got up from his bed, went to his closet and opened it, took out a small box and opened it revealing his Duel Monsters Deck.

His Elemental Hero Deck that he got from his aunt.

Then he went back onto his bed with his Deck, look at the Rider Cards then he put his hand out and concentrated.

His Duel Deck glows purple with black electricity, his Rider Deck glows Magenta, and then they fused together.

After a while, the glowing stops and Judai looked down in his hands to see a full deck. A really potent and powerful deck.

He smiled and thought,

Judai:Great. Now I have the greatest deck imaginable. I may no longer be a Passing By Kamen Rider, but I can be the world's greatest duelist.

Judai:The world's greatest Non-Heroic Hero Duelist that everyone will remember.

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And there you go. The Prologue for this new fic is here.

Feel free to leave a comment anywhere and give me your thoughts.

And enjoy the rest of your day.