Darkness, a place where there is nothing. An empty void that cannot be filled regardless of any methods. It is believed that it is a source of all evil or an entity that is not welcome the in the world of those who thrive. This is not the case, darkness is a thing that it is what it is filled with, nothing. Darkness has no malicious intent or any intentions yet somehow people have this darkness within their hearts. Some try to fill the void, others just lived on with it until death. It is not darkness what makes people fall in despair, it is what they do with it that decides their fate.

Year 2019

"Hmm, 'Kamen Rider Climax Fighters' didn't know this series had a new game." Within a bustling city in Japan, lies a store where anime merchandises are being sold. "By the looks of the title I'm guessing is a fighting game, interesting," said a young male voice.

The person checking the game from the store goes by the name Nathan, but people call him Nate. He is a seventeen year old male with black messy hair, pale skin, a serious face, and blue eyes covered by a pair of square-framed glasses. He wears a grey shirt with navy blue jeans and blue sneakers. Over his grey shirt, he has a black jacket with yellow linings that traces the zipper and pockets.

Nathan was checking on the game until he decides to purchase it. Despite his serious look he has a fondness for playing video games and watching anime. These do not hold him back from his priorities as he was still able to keep up with his part time job hence how he also has the money to buy the game.

He picked up and paid for the game. "Time to test this at home," he said as he arrives at his house. No one else lives in Nathan's house besides him. He was alone for almost half of his entire life. His mother died after giving birth to him and his father disappeared for unknown reasons when Nathan was only at the age of eight. He felt lonely, he had a void in his heart that needed to be filled. He tried filling that void by watching anime, his favorite was the Kamen Rider series'. Despite not being animated, Nathan still considers it as an anime like some shows. He found hope whenever he sees the main characters transform, defeating their enemies, and protecting their friends. Kamen Rider had an impact in his life.

As Nathan turn on the console to insert the game, something bizarre happened. The television's screen started projecting a grey veil which looked familiar to Nathan, a little too familiar.

Nathan was baffled and curious but kept his calm composure and he started touching the veil. As he touched it he whispered a name which is familiar to no one but him, "Decade."

Hesitant at first but Nathan finally decided to enter the veil as he somewhat knows how the veil works. After he entered he was met with an empty white space.

"I could be dreaming, but knowing Decade I can tell that this is more than a dream," Nathan sarcastically stated. He was not afraid of the situation he was in, he was only confused and a bit annoyed. Then, he suddenly hears voices.

"Nathan Grayson" said a calm yet loud echoing voice. This made Nathan turn his head only for him to find two humanoid figures. They were slightly taller than him but those were not the main features of what Nathan saw. The one on the his right was glowing yellow and on the left was of glowing purple. Both have no facial features in fact, they do not have any faces the only defining features that they have are that both have horns, the yellow one has horns of a reindeer and the purple one has those of a ram. Both were just standing there in front of Nathan until one of them spoke.

"Nathan Grayson we have called you here," the one speaking was the yellow figure. Nathan was surprisingly calm about the situation that he was in. He already knew what the grey veil meant but he did not expect what came out of it.

Nathan spoke to the two figures, "Okay before you say some destiny related business, I want to know who you are and how were you able to make that grey veil." "The only people I know that can make these portals are nothing but fictional characters."

The purple figure respond with a stern and serious voice, "We are the gods of light and darkness."

Then the yellow figure followed up, "We have been watching you for some time and what we saw was a perfect person for a purpose that we have in store."

"Alright, first your names ring a bell to me and are generic, second what you did is creepy, and third what purpose," Nathan answered sarcastically.

The yellow figure, now named god of Light, explained, "we seek of you for something not of a great scale, you may call it a favor perhaps." Then the god of Darkness, the purple figure, continued, "We want you to be a judge of a world that we had left centuries ago."

"Then?" Nathan sarcastically asked with one brow lifted.

Light continued, "if it is still worthy for you then you may leave and go back to your original world, if not..." Darkness finished the sentence, "...destroy it."

Nathan was surprised not because he was in the presence of gods but the fact they asked him, of all people, to do such a task.

"Hold on, you want me to go to another world and see if I should throw it in the trash?" He asked. "If so then why don't you do it," as Nathan questioned the logic of their request.

"We only ask of you is because we made a promise to someone that we will not return to that world until they have shown their worth," explained Light.

"Then I'm assuming that you're going to give me some type of power to do the whole world destruction bit," said Nathan.

Darkness gave a smirk, which was not shown due to the lacking of a face, then gave Nathan a device which was all too familiar to him.

"Here it is, your tool of destruction," said Darkness with a slightly gleeful tone.

Nathan's eyes widened with shock as he held the device. The device was a navy blue belt buckle with a purple lens with a silver frame in the middle and side handles on both sides. Eighteen symbols are engraved surrounding the outer frame that holds the lens.

After looking at the details Nathan finally uttered a word, "the Decadedriver."

"This explains the grey veil but hold on, this is the Decadedriver but it's not how I remembered," Nathan continued, "Unless this belongs to a different Rider."

Suddenly the white space finally distort and tranfers Nathan to the world where he was suppose to go to.

He then checked his surrounding and what he saw was a broken moon. It was then he realized what was going on. "Those were the gods of Light and Darkness and they sent me to Remnant?" Remnant was a world created in a popular internet animation show called "RWBY," which is also one of the shows Nathan used to watch. After closer inspection Nathan decided to walk around since he found a nearby city. As he was walking he started to think of plans on how to do this "favor" that was given to him.

"Alright, so I'm in Remnant and from what I can tell I'm walking in the city of Vale right now." He continued, "I've watched the series so I know how everything is going to play out but the fact I'm here, there's a chance that could chage everything and I'm suppose to destroy this world as a Kamen Rider." He then snickered when he came to another realization, "This means I'm technically a villain Rider." He then grabs the Decadedriver out of his pocket and started starin at it. "I know how this thing works yet I haven't tested it and based on what I've watched I've seen how out of control some of these Rider powers are."

He puts the driver back to his pocket and as he continues to walk around Vale he saw a clothes shop then he looks at himself. "Well since I'll be staying here for a while might as well try to fit in." His clothes did not fit in the world of "RWBY" so he decided to buy some new clothes and lucky for him he had some money and in the right currency. Apparantly the gods not only sent Nathan to another world but also gave him some necessities. After doing some shopping he went outside with a new look. He kept his glasses but everything else was changed. Instead of his shirt, jacket, jeans, and sneakers, he was now wearing a navy blue collared shirt with a black vest covering it and a yellow neck tie. He was also wearing gray slacks and black boots with yellow soles. He changed his hairstyle as well, instead of the old messy black hair, he went with a more clean and kept hair. Overall he looked attractive which unironically caught him a few girls staring at him and giggling. Nathan continued his walk around Vale still thinking of a plan.

"I could find a job, anything simple could work but the question is where would I stay," he thought to himself. "There's Beacon, but they have the whole team system and it's not like their gonna make a five man team or a solo team though that would be helpful in my case," he then continued, "plus, their applications are strict unless I pull off a 'Ruby Rose.'" "That reminds me what episode of 'RWBY' am I in?"

As Nathan pondered on that question, screams were heard. Nathan turned to where the sounds are coming and what he saw was a bunch of civilians running away from something, a group of strnage looking creatures. The creatures had pitch black bodies with bone-like armor and masks. The masks had red markings and the creatures had yellow eyes and sharp claws, spikes, and teeth. They resembled a pack of wolves and Nathan knew what he just saw. "Those are Grimm and not just that their Beowolves," he assessed.

The civilians continued running and screaming in either terror or for help

Nathan then grabbed his Decadedriver but he started to think. "Wait, I can't just transform out in the open and I'm sure that if I fight, the whole thing will be recorded by news cameras or hidden cameras installed by Atlas." "I'm not dealing with either Cinder nor Ironwood." Nathan then thought of an idea so he quickly went back to the same clothes shop and ran inside the fitting room. He puts the Decadedriver in front of his waist and metal straps wrapped around his waist with a metallic book. He then pulled out a card and he was surprised at what card he had drawn. Nathan knew that the Decade card is not there but what he found was a different Rider. Its helmet had a grey base with blue lens for eyes and seven vertical black line with a yellow gem on top of the center line. The card had a name under the portrait of the Rider, "Dark Decade."

Nathan realized what he thought earlier was hilariously right.

"Guess I am a villain Rider, might as well."

He pulled the side handles of the driver, and the buckle rotates revealing a card slot. He then inserts the Rider card in the buckle and then a serious monotoned voice started playing

~KAMEN RIDE~

Nathan pushed both side handles which made the buckle rotate back to its original position and the voice played again.

~DECADE~

Nathan finally transformed into a Kamen Rider. The helmet looked similar to the one on the card. The torso of the armor had grey on the sides with black on the middle. The arms were black with grey shoulder pads. The legs were grey with a black vertical lining on the middle of each legs. To top it all off the torso has a uneven cross on the outer left chest area outlined with yellow and filled with black on the inside. This is Nathan's true form, the form of destruction. He was now Kamen Rider Dark Decade.