Let me get one thing straight, I have no ownership over any Kamen Rider Series.

Warning: May be alternate versions of each Rider, supporting Rider, supporting characters, etc.

For W: One female, one male make up Double.

While there are AU's and OC's and stuff, I'm gonna try to stay true to the original character's personality. May be a bit of OOC.

W: The Return of the O

Detective Julian Tarver of the Nelson Detective Agency was sitting in his office, reading his former boss' favorite book, Sherlock Holmes. Julian had taken over as detective when his boss Siegfried Nelson was killed by the Museum Group during what is known as the Begins Night incident two years leading into the present. The Museum Group were responsible for the Dopant crime wave in the city.

Luckily, this group was no more.

Julian had just gotten well into his book when he was smacked in the head from behind. The detective closed his book and looked up. It was his "boss" and landlord. Well, it was the son of Siegfried, Adonis. He looked up at his spiked red-orange hair and black-rimmed glasses.

"It's time for your rounds, Julian," Adonis said, holding a green sandal in one hand and Julian's black fedora out to him in the other. "So get your nose out of that book."

Julian rolled his eyes as he took the fedora, putting it on his head.

"Shouldn't you be with Axel right about now, Adonis?" Julian asked, sighing.

Axel Bryant, Kamen Rider Accel, was Adonis' fiancé and Julian's younger brother. Their wedding was a long way off, though.

Julian stood up, dusting himself and adjusting his red tie that contrasted his black shirt, vest, and slacks. He looked like something out of a 40's movie.

"Looks like it's time for Chicago to once again experience the hard-boiled style of Julian T-"

"Half-boiled. Now come on."

"Goddamn it, Adonis. How can I be hard-boiled if I'm dragging your ass around?"

"You know, I can aim a kick at a 48-degree angle and bring down 25 pounds of force, which is enough to turn your balls into goo."

Julian cringed, grabbing at his groin.

"Gotta catch me first."

"Julian!" a female voice called out.

Julian looked up as a tall, slender girl came through the office door, removing the hood on her cloak to reveal a pale face, green eyes covered by glasses, and long red hair. It was Julian's partner, Tabitha "Demoness" Jiles.

It was the Jiles Family that headed up the Museum. Tabitha had died once before and came back from the dead thanks to the Gaia System. It was the incident that killed Adonis' father that Julian and Tabitha met. Needless to say, it was an awkward meeting- but an interesting meeting that led to the greatest partnership in Chicago: Julian and Tabitha becoming Kamen Rider Double.

"We've got trouble! There's a yellow jacket monster rampaging through the city!" Tabitha exclaimed, breathing heavily.

"We've got a Dopant to take care of! Let's go, my ginger Demoness," Julian replied, straightening his hat out as he and Tabitha ran out of the door of the detective agency, Adonis behind them.

Tabitha rolled her eyes as she followed.

Dismounting the Hardboilder, Tabitha and Julian looked up at a life-sized yellow jacket. Was it a Dopant?

"Let's go, Tabitha."

Tabitha, on Julian's right, took a green USB drive out, a Gaia Memory.

"Cyclone!"

Julian, on Tabitha's left, revealed a purple Gaia Memory.

"Joker!"

A belt with a red W-shaped buckle appeared on both of their waists.

"Henshin!"

Tabitha inserted the green Cyclone Memory into her Double Driver. Julian pressed it down before doing the same with the Joker Memory.

"Cyclone! Joker!"

A red motorcycle appeared next to the Hardboilder, Adonis rushing to catch Tabitha as she fainted during the transformation. Her mind was transfered into the green-and-black Double, while Julian served as the body of aforementioned Kamen Rider.

"Dammit, this never gets old," Adonis muttered as he dragged Tabitha to safety.

The second occupant of the motorcycle happened to be Axel. He walked over to Adonis, giving him a kiss on the cheek.

"I'm goin' in," Axel said.

"Be careful, babe."

"No worries," Axel replied, revealing a red Gaia Memory.

"Accel!"

"Hen... shin!"

Axel placed the Accel Memory into the Accel Driver belt, pushing it in and revving up the throttle on the belt.

"Accel!"

The transformation covered Axel in red armor, allowing him to become Kamen Rider Accel.

"Now, let's break away."

Meanwhile, Double was heading toward the flying "Dopant."

"Hey, Tabitha, I thought all the Museum's Gaia Memories were destroyed."

"Me, too. That's strange."

Double switched out the Joker Memory, replacing it with a blue one.

"Trigger!"

The left side of Double changed from black to blue.

"Cyclone! Trigger!"

In Double's hand was a blue pistol. He pointed it toward the Yellow Jacket and fired, bursts of wind coming out and hitting the monster in the wing. Accel in Bike Form, not wanting to take a backseat to this fight, blew past Double. He reverted to his normal form, with the Accel Blade in his hand as he jumped to meet the falling monster with two strikes before coming back down to the ground and revealing another Gaia Memory.

"Engine!"

"Okay, Dopant. You have exactly 3.5 seconds until your despair."

Accel inserted the Engine Memory into his Accel Blade.

"Maximum Drive!"

"Tabby, let's put an end to this," said Julian.

Double's left hand revealed a silver colored Gaia Memory, inserting it into the Double Driver.

"Cyclone! Metal! Maximum Drive!"

In Double's hand appeared a metal staff called the Metal Shaft.

"Metal Twister!"

"Dynamic Ace!"

Double's Maximum Drive as CycloneMetal consisted of him spinning the metal shaft around and creating waves of wind.

Accel's finisher produced an A-shaped projection of energy from his sword.

Both attacks nailed the "Dopant," which sent it up in an explosion but left no Gaia Memory behind.

The two Riders canceled out their transformations, with Tabitha awakening and running over to Julian and Axel.

"What the hell?" Axel said, one eye cocked. "There was no Memory Break."

"No Gaia Memory left behind?" Julian asked himself. "Strange."

"Very strange," Tabitha agreed. "Something's off."

Julian looked up.

"What do you mean?" he asked.

"One, the enemy was a bug. A yellow jacket, to be more specific," Tabitha replied. "I don't think the Museum made a Yellow Jacket Memory. We defeated all of the Dopants, to my knowledge."

"Hold that thought," Julian said. "Keyword: Museum."

Suddenly, Tabitha was taken into an alternate universe which was a library of sorts. She watched as some of the books disappeared.

"Next Keyword: Insect Dopant."

Then every book in the library faded except for two.

"Hopper and Cockroach," Tabitha reported back.

"That's it?" Julian asked.

"Yeah. I'm gonna take a guess here, Julian, and say that what we fought was no Dopant."

"Then what the hell was it?" Axel demanded.

"No clue," Julian replied.

"It was a Yummy."

Everyone turned around to reveal a man in his early twenties: dark skin, with a fade cut covered by a black baseball cap, and dark brown eyes hidden behind sunglasses. Next to him was a younger male of a lighter tone with dirty blonde hair and his own eyes covered by glasses.

"OOO!" Julian and Tabitha both called out.

The two remembered meeting this newcomer during a battle with the Luna Dopant, who was part of the organization called NEVER. They also encountered OOO (pronounced O's) during a battle with the evil Kamen Rider Core.

"Double," Jordan Payne said back, walking toward the two detectives and shaking hands.