I don't own Kamen Rider Decade or any other anime or game that belongs to their creators. I'm doing this for fun, not profit.

Chapter 15: Ryuki's World Part 1

As both Decade and Ryuki were still stunned by Ren's transformation as Kamen Rider Knight, the bat themed Rider was walking towards them as he drew out his sword the Darkvisor.

"What the...Ren, what are you…?" Ryuki said before Knight swings his sword at both him and Decade which they dodge in time. "Ren, what are you doing?"

"Isn't it obvious? Didn't those two make it clear just now?" Knight asks as he swings his sword at Ryuki a few times before Ryuki blocks his next slash using his Visor as the two of them were in a lock.

"But why?! You have no reason to fight anymore!" Ryuki told him.

"That doesn't matter right now!" Knight said as he pushed Ryuki's Visor away and slashes on his chest two times which sends Ryuki rolling on the ground.

"Yuji!" Shana shouted in worry as Ryuki stood up using his hands as Knight walked to him to swing his sword down at him, and coming to his aid was Decade as he used his own sword to block Knight's attack.

"So I guess that means you're not open to reason?" Decade asked.

"Didn't I make that clear?!" Knight said as both he and Decade engage in a sword fight as they clash their blades while dodging as well.

When the two clashed their swords in a bladed lock, Knight pushed Decade back as he landed a kick on his chest forcing him to stumble.

Knight soon pulled out his Sword Vent Card and opened his Visor's card slot and inserted the Card into it.

[SWORD VENT]

Then a lance appeared in the sky as it flew to Knight as he caught it in his hand.

The lance was colored black with a silver guard and golden markings on the lance and a golden bat symbol on the guard. This is Knight's Winglancer.

Knight then charges at Decade and swings his lancer at him several times and Decade dodges and parries his attacks before they bring their weapons in a lock but then Knight pushes Decade's sword aside and lands a slash on his chest followed with a kick which sends Decade rolling on the ground.

Knight then charges at the down Decade and swings his lance at him, that is when Ryuki charges at Knight to protect Decade as he inserted his Sword Vent Card into his Visor.

[SWORD VENT]

Ryuki's sword flew to him as he caught it just in time to block Knight's lance to protect Decade as the two were now in a bladed lock.

"Ren, stop it! Why are you doing this? You have no reason to fight anymore!" Ryuki told him and Knight pushed him back a few inches.

"You know that's not ture, Yuji! You of all people know who I have to fight for! And who I have to live for!" Knight stated, and that got Ryuki's attention.

"What?" Ryuki said before Knight pushed his sword back and landed a slash on his chest sending the dragon Rider rolling on the ground.

"Yuji!" Decade said in worry as he was about to stand up and help but Dark Decade stopped him as he pressed his foot on his back.

"Now, now, Decade. No reason to interfere. Just stay down and enjoy the show, because trust me, Ryuga and I are enjoying it." Dark Decade said as Ryuga stood by his side as Decade glared at the Dark Riders.

"You bastards…" Decade mutters as he struggles to stand back up before Dark Decade kicks on his back to make him stay down.

Ryuki placed his hands on the ground and raised his head and saw Knight standing in front of him as he was looking down at the Dragon Rider.

"Ren…" Ryuki mutters.

Knight then pointed his lance down at Ryuki to finish him which worried Decade and Shana as all they could was watch as Knight thrust his lance at Ryuki…

[ATTACK RIDE: BLAST]

Energy shots were fired at Knight, Dark Decade, and Ryuga as they were forced to stumble away from Decade and Ryuki respectively. Both Decade and Ryuki managed to stand up as all parties looked around for the one who fired upon Knight and the Dark Riders.

"Who dares…!" Dark Decade grumbles in rage.

"That would be me." Said Diend as he was invisible as he became visible.

"Seth?!" Decade said in shock that he's here.

"You...Why am I not surprised?" Dark Decade said as Diend turns to Decade.

"Do I always have to rush in and save your ass?" Diend asked.

"You've got a lot of nerve interrupting our show there." Ryuga said as he, Dark Decade, and Knight were now facing the three Riders as Decade and Ryuki stood up on their feet.

"Really don't like our chances here. We should retreat for now." Diend told them.

"Right." Decade nodded in agreement as he brought out his Fourze Card and inserted it into his Driver.

[KAMEN RIDE: FOURZE]

Decade transforms into Kamen Rider Fourze and soon brings out an Attack Ride Card that has a picture of the Smoke Module, and inserts it into his Driver.

[ATTACK RIDE: SMOKE]

The Smoke Module appeared on D-Fourze's leg as it unleashed a large smoke around the area and blinded the Dark Riders and Knight.

When the smoke died down the Dark Riders and Knight saw that Decade, Diend, and Ryuki were now gone.

"No! They got away!" Ryuga said in pure rage.

"Oh well, they'll be back. After all…" Dark Decade said as he turned to Ryuki's friends as Shana and two Flame Hazes glared at them. "We still have our hostages."

Dark Decade then turns to Knight as he turns to him as well.

"And you'll still play along with us, right, Knight?" Dark Decade asked.

Knight grumbles before he kneels before the leader of the Dark Riders.

"Of course...My lord…" Knight mutters as he tightly clenches his hand.

(Play Journey through the Decade by Gackt)

(Kamen Rider Decade, he has been given the power of a destroyer to destroy one.) (As the songs start to focus on Decade, who just transformed, standing in a white room filled with filming clips.)

(Miageru hoshi sorezore no rekishi ga kagayaite) (Yui covers Alex's eyes until she lets go. His eye zoomed in and was soon replaced with the camera, his camera, and later his DecaDriver which includes all 15 Heisei Riders including himself. His Machine Decader is shown parked in front of a pile of smoking rubble before, in the white room, Alex grabs one of the cubes and faces the camera.)

(Seiza no you sen de musubu shunkan hajimaru Legend) (The scene changes to a worn down warehouse with all Riders sitting but one at a time. Yui grabs a bottle and looks at it while Alex looks back. Ryu slumps back against his TryChaser 2000 as the silhouettes of the riders appear one by one. Setsuna throws the bottle down on the floor.)

(Oorora {aurora} yurameku jikuu koete. Tobikomu meisou suru Parallel world) (On one side the Dark Riders charge while on the other side the Riders of good do the same. The same bottle shatters as Alex looks as though he was about to collapse but not before his face changes into each of the Rider's helmets. Back at the warehouse all 15 riders lined up doing their signature poses and with Decade in the center but behind him was Yui.)

(On the road dare mo tabi no tonchu. Hontou no jibun jishin deau tame.) (All 15 Riders were in a circle and were fending off the Dark Riders as they were being surrounded by them. Alex is then shown on his bike getting his helmet on and Yui was riding as a passenger. Yui grabs on to him tightly before we see Decade showing off his fighting skills especially with the Attack Ride: Slash card. Soon back to the Rider, everyone was doing their best trying to watch each other's backs while against the Dark Riders.)

(Atarashii yoake e to tsuzuku michi ni kawaru no darou.) (Alex sits alone, exhausted and with tears rolling down his face until Yui was in front of him with his camera and offering the other to help him up. We soon see Ryu riding with Alex and Yui on their respective bikes. Back in the battle, Blade was having trouble with Glaive until Decade showed up and pushed Glaive away. Ryuga was about to use his strike Vent on Decade until Ryuki used his first which saved Decade.)

(Mokugekise yo Journey through the Decade.) (The Riders were helping each other trying to take down their respective foe. Soon Yui is seen with a smile in Decade's mind. But Decade focuses on the battle and helping his comrade's. Decade was soon on his bike driving out of an Aurora Curtain with pictures of the other 14 Riders in it and circled the logo.)

Inside the studio, Yui, Ryu, and Ken were waiting for Alex's return for a while but after almost an hour had passed they were starting to get worried.

"I'm really starting to worry about Alex. He should've called by now." Yui said in worry.

"Don't worry, Yui. I'm sure he'll be back in no time." Ken told his niece

"Yeah. But don't worry, I'll go out and look for him to see if he needs help." Ryu told her.

They soon heard the door opening which was much to their relief.

"See? It's just like I told you." Ken said before they Alex had entered the room with Seth and Yuji with him as Yuji was looking around the studio and seeing them surprised him and the others. "And it would appear he brought guests."

"Alex, what is Yuji doing here?" Yui asked.

"Well...It's a long story…" Alex said as he rubbed the back of his head.

"Alex, just what is this? Why did you bring me here, and how are you a Kamen Rider? And who is this Dark Decade?" Yuji asks for Alex's attention as he turns to him.

Alex sighed as he rubbed the side of his head.

"Alright, guess there's no point in hiding it now. And I have no doubt that both of you need some answers." Alex said as he looked at Alestor while leaving his friends a little confused.

"Both?" Yui said.

"So, you're also aware of me as well." Alestor said which surprised the others.

"Did that pendant just talk?" Ryu asked.

"Glad to know I wasn't hearing things." Ken said.

After Yuji had introduced Alestor to the others they were seated on the table, except for Seth as he was standing and leaning on a nearby wall.

Alex soon explains things to both Yuji and Alestor. How he and friends were from alternate earth, and the situation about Dark Decade and the Dark Riders.

Yuji was stunned to hear this as he leaned on his table and placed a hand on his head.

"Okay...this is a lot to take in. But everything I've seen, I'm willing to believe it." Yuji said.

"Indeed. But now it explains how you were still able to move in the Fūzetsu." Alestor said as Alex, Yuji, and the others turned to Seth. "Normally it would affect people that are bound by the rules of this world. But since you, Takahashi Alex, and this Dark Decade are not from this world, you are immune to such things."

"I guess it's a rule for people who are outside of other worlds." Seth shrugged.

'I didn't know that was possible before.' Alex thought.

"But still, I can't help but feel worried." Yuji said. "You said that Dark Decade had brought back evil Kamen Rider, wouldn't that include the ones in my world besides Ryuga and Odin?"

"Yeah." Alex nodded. "I had a run in with Scissors and Alternative Zero."

"Zero?! He's back too?" Yuji said in shock.

"But he had broken off from the Dark Riders. So I don't think we'll have to worry about him appearing in this world." Alex told him.

"I see. Well, here's hoping that you're right. But I still can't figure it out, how was Ren able to get his Deck back...No, I think the better question here is why is he working with the Dark Riders." Yuji said in wonder.

"Isn't it obvious?" Seth shrugged, getting everyone's attention. "He mostly did it for survival. Dark Decade offered him a deal to serve at his side, and he accepted it. Can't say I wouldn't have done the same if I was in his shoes."

"You didn't have to say it like that." Alex said, giving Seth a narrow look.

"I only spoke the truth." Seth said.

"No." Yuji said, getting everyone's attention. "Ren, isn't like. He came off a bit cold and arrogant, but he would never do something like that for selfish reasons."

"And I agree with you on that. But there has to be a reason for it. Can you think of anything he said that might have tipped you off?" Alex asked and Yuji thought about it before he remembered Knight's words to him.

"You know that's not ture, Yuji! You of all people know who I have to fight for! And who I have to live for!"

Yuji's eyes widened in shock as he put the pieces together.

"Yuji, what's wrong? Did you figure something out?" Alex asked.

"I'm sorry! But there's something I need to check out!" Yuji said as he ran out of the voice.

"Hey! Wait for us!" Alex said as he and Seth followed him.

"And just when he got back home." Yui said.

Alex, Seth, and Yuji riding on their bikes, with Seth riding behind Alex, had soon arrived at a hospital. They parked their bikes and soon entered the hospital as they walked in front of the reception desk.

"Oh hello." The receptionist greeted the Riders. "How can I help you?"

"I'm here to visit Ogawa Eri." Yuji told her, and Alex narrowed his eyes to hear that.

"Oh Ogawa-san? I'm sorry, but ah…" She said as she wasn't sure how to answer his request.

"What's wrong?" Alex asked.

"Well you see...Ogawa-san is currently missing." She told them and Yuji was in shock to hear that.

"Nani? Since when?" Yuji asked.

"About a few hours. We're not sure what happened. When the nurses checked her room she was just gone. We've contacted the police but so far they haven't found any trace of her." She told them and Yuji was even more stunned to hear this before he ran to the stairs and went up. "Hey, wait!"

"Don't worry, we're reporters!" Alex said as he showed his ID and followed Yuji. "Yuji, wait up!"

Seth was a little confused on what's going on before he shrugged and followed them.

Both Alex and Seth had followed Yuji to the third floor of the hospital and soon arrived at the room of 'Ogawa Eri' as the nameplate was beside the door.

They soon walked inside as Yuji opened the door and saw that this Ogawa Eri was indeed as there was no trace of her.

"Oh no…" Yuji mutters.

'So that's how it is.' Alex thought as he now understands what's going on here and knows that Dark Decade is responsible for this. 'Dark Decade must've kidnapped Ogawa Eri, because she's the one thing that Knight would fight and die for.'

"Dammit!" Yuji said as he slammed a fist on the wall. "How could've I let this happen?"

"Yuji, calm down." Alex told him as he placed a hand on his shoulder. "There's a good chance that she's still alive. After all, Ren said it himself. She's the one thing he's willing to fight and die for."

"I know that but still…" Yuji mutters in frustration.

Seth calls their attention as he makes a few fake coughs in his hand, and they soon turn to him.

"So...Care to explain what's going on here? Because I'm completely clueless." Seth said.

"Oh right." Alex said as he chuckled while rubbing the back of his head.

The three of them soon left the hospital to explain to Seth about the situation as Yuji explains who Ogawa Eri is.

She is Ren's fiance, during the Rider War she was attacked by Ren's Contract Monster, Darkwing, before he made a contract with it. The attack left Eri comatose, which prompted Ren to become Kamen Rider Knight to win the Rider War to wish for her to wake up and to be with her again.

But as the world had reset after the Rider War had ended, Eri's attack from Darkwing never happened and Ren never became Knight as a result. Since then, he and Eri were living a happy and peaceful life together with Yuji watching over them.

"I see. I think I get the gist of it." Seth said in understanding. "So, it's safe to assume that Dark Decade kidnap this girl of his so that he'll have no choice but to serve him. Is that right?"

"Yeah." Yuji nodded. "That's the only conclusion I can come up with."

"Makes sense. Love can sometimes be a weakness; it can make someone that easy to manipulate." Seth said and Alex gave him a narrow look.

"Hey man, you don't have to say it like that." Alex told him and Seth raised his hands.

"I was only telling the truth. And it's not like I'll ever stoop so low and do the same thing." Seth told him.

"Sure you would." Alex rolled his eyes. "But anyway, now we have another hostage to worry about."

"Yeah, but where? She's been missing for hours." Yuji said.

"Well...We definitely tell she wasn't with the rest of the hostages." Alex said as he remembers seeing Shana and the others being imprisoned in mirrors, and there was no sign of Eri with them. "I think that Dark Decade did that on purpose, knowing that Ren might betray him and pull off a rescue even if it means his death."

"In other words, he might have hidden her anywhere in this city. Which will be like looking for a needle in a haystack." Seth said.

"Not exactly helping with your choice of words." Alex told him and Seth shrugged.

"Hey, I was only pointing out the facts." Seth said.

"Even so…" Alex said.

"No, he's right. Even if we start looking for Eri, chances are we might not be able to find her in time, if or when Dark Decade will make his next move." Yuji said.

"Agreed. And there's no doubt he'll kill her if we start looking for her." Alastor said.

"Yeah. There's no doubt in my mind he'll do something like that." Alex said in agreement.

"That's true. No matter how you look at it, we're playing in Dark Decade's hands this time." Seth said.

"But still, there has to be something we can do…" Yuji said as they thought about a plan to rescue the hostages and beat Dark Decade and Ryuga.

Alex then has an idea about that.

"Playing in Dark Decade's hands…? That's it." Alex said as he slams his hand on his other hand.

"What's it?" Yuji asked.

"Since we're playing in Dark Decade's hands already, then may not continue playing his little game." Alex suggested.

"And what do you mean by that?" Alastor asked.

"Just listen." Alex told them as he began to explain what he had in mind.

Inside of her mirror prison, Shana still continues to break free by slashing the surface with her sword, but she wasn't even able to leave a scratch on it. Shana soon stops her attempts to break the prison as she begins to pant.

"Oh…So you're still going at it." Shana looks up and glares that it was Dark Decade looking at her. "I keep telling you that it's nearly impossible to break out of there. But I guess you're just too stubborn and stupid to listen."

Shana then shouted at Dark Decade, but her words weren't coming out of her mirror prison.

"What was that?" Dark Decade said as he placed a hand behind his ear. "I believe you said, 'I'm so sorry, Lord Dark Decade~! Please, forgive me! Waaahhh!' Hahaha! Did I get it right?"

Shana grits her teeth as she glares at the Dark Rider.

"I'll take that as a yes. Don't worry, once Ryuga is satisfied in this world, he'll make sure to keep you as his own personal pet. So just sit in there and wait, okay?" Dark Decade said in a playful and mocking tone as he left.

Shana could lower her head as she felt powerless right now, that is until she notices someone walking in front of her mirror prison.

Thinking it one of Dark Decade's minions, Shana looks up and glares at him but to her surprise it was Ren.

"Hello there. It's Shana, right? I heard quite a bit about you, on how Yuji had helped you several times." Ren said and Shana narrowed her eyes at him. "I guess by that look, you're wondering why I'm working with Dark Decade and why I'm fighting against Yuji. Well, let's just say I have my reasons and I'm willing to die for it. And I'm just hoping that Yuji feels the same."

Shana blinks to hear that before Ren takes his leave. As Shana watches him leave, she then looks up at the sky as she worries for Yuji.

'Yuji…' She thought.

After parting ways with Seth and Yuji, Alex had returned to the studio. Since it was late to cook anything, they decided to order take out, Alex and his friends were waiting for their food to arrive.

Yui had decided to rest in her room and was sleeping on her bed. She was tossing and turning in her sleep as she was having her usual dreams.

Yui, wearing a white dress, was lying on the ground before she woke up and sat up. That is when she saw both Decade and Dark Decade fighting against each other as they landed a punch and a kick.

Decade lands a strong right hook on Dark Decade's face which makes him step back before he manages to land his own punch on Decade's face which sends him rolling on the ground.

As Decade stops on his knee and foot, he then sees Dark Decade jumping at him and aiming a kick at him, and Decade dodges by rolling on the ground once again as Dark Decade's kick crashed into the ground before he notices Decade standing back up and throws a reverse roundhouse at the Dark Rider, but Dark Decade blocks it with his forearm before he pushed Decade's leg away.

Decade then saw Dark Decade throwing a punch at him and Decade catches it in time with his hand and throws a punch at Dark Decade which he catches in time as well using his other hand, and then the two Decades slams their heads against each other as both stood their ground against each other.

Both Decades soon backed away from each other, and they brought out their Final Attack Ride Cards and inserted them into their respective Drivers.

[FINAL ATTACK RIDE: D-D-DECADE]

Both Decades jumped into the air and kicked at each other and as their kicks clashed, they spun around several times before an explosion appeared between their kicks, which caused Yui to cover her face with her arms as the force of the explosion caused her to step away a few times.

And as the explosion had died down, Yui lowered her arms and saw that both Decades were still standing and she smiled in relief, but then Decade reverted back into Alex as he fell to the ground while Dark Decade was still standing.

Yui's eyes widened in shock before she ran to Alex and soon knelt down to him.

"Alex! Please wake up! Alex!" Yui pleaded as she shook Alex's body, but he wasn't responding, and Yui noticed that Alex wasn't breathing and that his heart wasn't beating. She then shed tears as she muttered. "No…"

Yui then heard Dard Decade laughing maniacally, as she slowly looked up at the Dark Rider before he reverted back into his hooded form but only that his hood was lowered.

Dark Decade then turns to Yui as he shows her a crazed grin on his face, which further shocks Yui as he continues to laugh while Yui sees his face and recognizes it…

"No…NNNNNOOOO!" Yui shouted as she cried on Alex's dead body.

Yui screams as she wakes up from her dream as she sits up. She then begins to pant as she places a hand on her head. Then someone knocks on her door as Yui turns to it.

"Yui? Is something wrong? I heard screaming." Said Alex from behind the door.

"I-I'm fine...I just had a bad dream. Don't worry about me, you can go." Yui told him inside her room.

"Alright if you're sure." Alex said as he was about to walk away, but then Yui bit her lip before she called out.

"Wait!" Alex stops as he turns back to the door. "I changed my mind. Can you come in?"

Alex blinks before he says.

"Sure."

Alex then opens the door and enters Yui's room. He saw that Yui was seated on the floor as she was hugging her legs.

"What's wrong?" Alex said as he sat down beside her. "You said you had a bad dream. What was it about?"

Yui was silent as she held her legs closer to her chest before she began to explain.

"I…saw you and Dark Decade fighting each other." Yui told him and Alex blinks to hear that.

"Really?" He asked and Yui nodded.

"The two of you landed strong hits against each other, but in the end…You…You died while Dark Decade was still standing." Yui told him and Alex was surprised to hear that.

"What? Are you sure?" Alex asked and Yui hesitantly nodded.

"Yeah…I don't know why I dreamt about that. And it felt so real to me…I'm sorry, I didn't mean to scare you like that." Yui said as she placed a hand on her head before Alex petted her on the head which made her look at him as he showed Yui a smile.

"Hey, don't worry about it. It's just a bad dream." Alex told her.

Yui frowns as she smacks his hand off her head.

"Honestly…petting me on the head. Do I look like a child to you?" Yui said, and Alex chuckles as he rubs the back of his head.

"S-Sorry about that." Alex said as he turns away from her and frowns as Yui's dream does concern him a bit.

'If I remember correctly, Natsumi did have those nightmares where the Kamen Riders of every world fought against Decade. But still, it doesn't mean it's absolute. I'll find a way to defy that fate.' Alex thought.

"But there's another thing I notice." Yui said getting Alex's attention as he turns to her. "I think I saw his face."

"Really?" Alex said in shock as Yui nodded. "Then what did he look like?"

Yui lowered her head.

"I'm not sure…I couldn't see it, but despite that, his face seems so familiar to me." Yui told him.

"I see. Well, I guess that was a long shot." Alex said as he looked up at the ceiling.

'But now that I think about it, everytime he transforms in and out of his armor he's always wearing that hood of his, hiding his face. Why bother though? Why would he hide his face from me?' Alex thought.

"Hey, Alex…" Yui quietly calls out as he turns to her. "I know this may sound a little selfish. But can you stay with me for a while?"

Alex blinked a few times, before he placed his hand on Yui's shoulder, which made her look back at him.

"You got it." Alex said.

"Alex…" Yui mutters.

They stared into each other's eyes, until they started to move their faces together.

'I-Is he going to kiss me?' Yui thought but the idea is really appealing to her. 'I-I think he really is…'

Their lips were about a few inches from each other, until they heard a knock on the door, which made them stop.

"Yui? Alex?" It was Ken's voice on the other side, before he opened the door. "What's taking you two so long because-?"

He stops when he saw, Alex's face on the floor with Yui's hand pinning on the floor.

"I'm sorry. Was I interrupting something?" Ken asked and Yui soon stood up.

"No, of course not. Because nothing happened, right Alex?" Yui asked as Alex sat up and rubbed the back of his head.

"Yeah, nothing happened." Alex said.

"I see…" Ken mutters before his niece leaves the room and Alex soon stands up and follows her. "Kids these days." Ken said as he followed them.

(Next day)

It was now morning in the city. Alex is seen waiting outside of the studio as he was waiting for Yuji, and soon sees him heading towards him as he was riding on his scooter as he stops close to him.

"So I guess you're ready?" Alex asked.

"It's not that I have much of a choice." Yuji said.

"That is indeed good to know." Said a voice.

Both Alex and Yuji soon saw an Aurora Curtain had appeared in front of them and walking out of it was Shadow Moon.

"Shadow Moon!" Alex said as he was on guard against him, and Yuji did the same as he whispered to him.

"Let me guess, a Dark Rider working under Dark Decade?" Alex nodded.

"Yeah. Be careful, he's dangerous." Alex said before he calls out to Shadow Moon. "What are you doing here, Shadow Moon? Are you here to fight?"

Shadow Moon raised his hand in front of them.

"Be at ease, Decade, Ryuki, I am only here to deliver a message to you. From my master." Shadow Moon told them, and Alex blinks to hear that before Shadow Moon notices that Seth wasn't with them. "Where is Diend? I thought he would be here too."

"Hard to say." Alex shrugged. "It's not like I keep track of him."

"Hmph…I highly doubt it. But regardless, do you want to hear the message?" Shadow Moon asked.

Alex and Yuji turned at each other before Alex nodded at Shadow Moon.

"Fine. Show it." Alex told him.

Shadow Moon then brought out a small and round device and pressed on the button on top of it and appearing out of it was a holographic projection of Dark Decade.

"Greetings to you, Ryuki, Decade, and Diend, if you're still with them, anyway I'm happy to see that you're listening to my message."

"Man, really loves to hear himself talk." Alex mutters.

"I'm just letting you know that the hostages are still alive." Dark Decade said as he snapped his fingers which made holographic screens appear next to him showing that Ryuki's friends were still alive and were still trapped in their mirror prisons. "Or should I for now, they're still alive, because I'm planning on eliminating them when this is all over."

"Kisama…" Yuji mutters as he glares at the holographic recording of Dark Decade.

"But relax, despite what I am and what I'm trying to do, I'm a fair man so I'm going to give you a chance to save them. The device that Shadow Moon is holding will lead you to where me and Ryuga are. All you have to do is let it lead you to that destination. We'll be waiting, but don't be late." Dark Decade told them before the hologram recording disappeared.

Shadow Moon then throws the device to Alex as he catches it in his hand before he looks at it and then a holographic red arrow appears on top of it as it points in a different direction.

"All you have to do is follow that arrow. It will lead you to the master." Shadow Moon said.

"How are we supposed to know that he'll even be there?" Alex asked.

"You don't. But like the master had told you, you best not keep him waiting. Otherwise, I can't guarantee the hostages' safety." Shadow Moon told them before he walked into the Aurora Curtain before it disappeared.

Alex and Yuji then turn at each other.

"Well, guess we better get moving." Alex said and Yuji nodded in agreement.

"Yeah."

Alex and Yuji soon walk and jump into a nearby window to enter the Mirror World.

Inside the Mirror World, Dark Decade, Dark Yuji, and Ren were seen standing next to their prisoners as they were waiting for Ryuki and Decade to show up.

As they were waiting, Dark Yuji with his arms folded was tapping his finger on his arm.

"They're late. They should be here right now." Dark Yuji said.

"Be patient, Ryuga. They'll be here." Dark Decade told him.

That is when they heard the sound of motorcycle engines as they saw Decade and Ryuki riding on their respective Rider Machines had arrived before they stopped and got off their machines as they saw the Dark Riders and their forced alley Ren.

"And what did I tell you? About time you showed up, we were starting to wonder if you've chicken out." Dark Decade said.

"Did you honestly think we'll ever do that?" Decade asked and Dark Decade chuckles.

"Point taken. Guess that was stupid of me to ask." Dark Decade said.

As Ryuki faced the Dark Riders, he soon heard a pounding sound and saw it was Shana slamming on her mirror prison as she silently called out to him.

"Shana…" Ryuki says in relief to see that she's still alive before Ren moves in front of the Flame Haze and faces the Dragon Rider. "Ren…"

"So…I guess this means you made your resolve?" Ren asked.

Ryuki clenches his hand in frustration before relaxing it as he nodded.

"I have. Knowing you, you wouldn't back down from this no matter what happens." Ryuki states and Ren chuckles.

"Well, that's just who I am. You should know that better than anyone." Ren said, and Ryuki nodded.

"Yeah. Which is all the more reason I have to stop you." Ryuki swore to his friend.

"So, despite the fact you're now just a flicking existence, you're still the same Yuji." Ren said.

'So Ren knows about that too.' Decade thought as he looked at Dark Decade. 'And why do I have a sneaking suspicion that it was you who told him.'

"And what about you, Ryuga, are you going to fight us too?" Ryuki asked his dark counterpart.

"As much as I want to, I think I'll enjoy the show as you two destroy each other." Dark Yuji said.

"But you won't mind if I stay and help out, right?" Decade asked both Dark Riders as Dark Decade just smiled and raised his hands.

"Of course not. Also, like Ryuga, I'm only going to be a spectator here. But just to even out the odds." Dark Decade said as he snapped his fingers and an Aurora Curtain had appeared as a Dark Rider walked out of it.

He was wearing the same type of armor as Ryuki, but his was colored purple with some yellow and silver parts and has pointed shoulder guards, and his helmet was based off a cobra as the mouthpiece had fangs and the three silted visor had pointed edges on the bottom. His Card Deck was colored purple with a golden cobra on it.

This is Kamen Rider Ouja.

"Ouja…" Decade said.

"Figures it has to be him." Ryuki said as Ouja walked to Ren's side as he looked at him.

"Well, color me surprised…It really is you. When the master told me you're working under him, I couldn't believe it." Ouja said and Ren huffs at him.

"Does it look like I care about that?" Ren asked before Ouja chuckles.

"I guess not. But it's not like I care either." Ouja said as he set his eyes on Decade and Ryuki. "Especially since I'll have some payback here."

"Hate to break it to you, Ouja, but your opponent this time is Decade." Dark Decade told him and Ouja was surprised to hear that as he turned to his master.

"What?! Boss, you can't possibly be serious?!" Ouja said and Dark Decade gave him a dark look which caused Ouja to flinch.

"Does it look like I'm joking with you?" Dark Decade asked in a warning tone, and Ouja began to sweat a little underneath his armor before he sighed and turned away from him.

"Fine…I understand…" Ouja said and Dark Decade smiles to hear that.

"Good. That's better." Dark Decade said before he turned to Dark Yuji. "How about we go to a better spot to enjoy the show?"

"That's fine by me." Dark Yuji said before he and Dark Decade jumped to the top of a nearby building as they looked down at the four Riders as they faced each other.

"Just so we're clear, you better not get in my way." Ouja told Ren as he huffed.

"Funny. I was going to tell you the same thing." Ren said as he brought out his Deck and his Buckle soon appeared on his waist before he strikes his pose.

"Henshin." Ren said as he inserted his Deck into his Buckle and transformed into Knight.

Knight soon faced Ryuki before the latter spoke to him.

"Ren, are you really sure about this?" Ryuki asked.

"Yuji, you should know better than anyone, I won't back down from a fight." Knight answered as he pulled out a certain Card.

The Card as the word 'Survive' on top and had a picture of a right wing with a blue jewel on the middle of it and behind the wing was a tornado.

Ryuki sighed as he should've known that was going to be his answer.

"I see. Guess I shouldn't be surprised by that…" Ryuki said as he pulled out the same Survive Card as well.

Ryuki's Survive Card was a bit different from Knight's, the wing was left sided and had a red jewel with red flames behind it.

Then wind begins to gather around Knight and flames appear around Ryuki as the two elementals begin to clash against each other. As they were both Ryuki and Knight's Visor soon changed forms.

Ryuki's Visor now resembles a gun with the design of a dragon's head with a silver grill-like visor with golden horns and the jaw was colored red with silver teeth. This is the Dragvisorzwei.

For Knight's Visor, it now resembles a sword and shield combo as it was now colored dark blue with golden markings and the sword's blade was also gold and on the guard of the sword was a bat's face and beneath was a golden symbol of a bat on top of a silver piece. This is the Darkvisorzwei.

Ryuki opens his Visor's jaw which shows the card slot for his Advent Cards, and Knight did the same as he split open the bat face on his sword showing the card slot on it.

Then both Ryuki and Knight inserted their Survive Cards into their respective Visors.

[SURVIVE]

Soon both Riders change into their Final Forms.

Ryuki's original red bodysuit was replaced with a black one with a red chest armor that looks like Dragreder's face. The interior of the chest armor had silver ridges and a golden line going down the center. Above the silver ridges were two black slits that resmebles eyes. The shoulder pads looked like horns that curved backwards and looked like they were connected to the chest armor. On both forearms were red guards with golden add-on armor that resembled a dragon's head red. His shin guards were also red and with the golden dragon designs as well. The helmet looked the same as before, but the top of the face guard was golden and with two antennae sticking upwards, and the dragon symbol on his head was gold as well. His Deck was no longer black, but red just like his armor.

Knight's bodysuit was replaced with a purely black one with a blue chest armor with golden lines in the shape of a bat and the shoulder guards resembles a bat's wings and wears a black cape on the back. On both forearms were blue guards with golden add-on armor that resembled a bat's head, and his shin guards were in the same design. His helmet looked the same as before, but the top of his faceguard and pointed edges were colored gold like he was wearing a golden crown on his head. His Deck was also colored blue just like his armor.

These are Ryuki and Knight's Survive Forms.

Ryuki and Knight faced each other while Decade and Ouja faced each other, and a clicking sound was heard as it was from a nearby clock on the road.

The four Riders stare at each other as the click continues to click before both hands reach the 12 line, and then all four Riders roar as they charge at each other.

Then all four Riders throw an attack against each other before the screen freezes on them…

To Be Continued…

There you have it, hope you like it. Review to tell me what you think of the story.

Here is a list of the worlds.

Kuuga - Cardfight Vanguard: Lock of Victory (Clear)

Agito – The Melancholy of Haruhi Suzumiya

Ryuki – Shakugan no Shana

Faiz – Myriad Colors Phantom World

Blade – Fate/kaleid liner Prisma Illya

Hibiki – RWBY

Kabuto – Lagrange: The Flower of Rin-ne

Den-O – Omamori Himari

Kiva – Shinmai Maou No Testament (Clear)

W – Senki Zessho Symphogear (Clear)

OOO – Senran Kagura

Fourze – Sword Art Online (Clear)

Wizard – Date A Live

Gaim – Tokyo Mirage Sessions FE

Drive – Tokyo Xanadu

Ghost - Yuuna and the Haunted Hot Spring