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Kingdom Hearts X Kamen Rider Saber: The Curse of the Forgotten

Summary:

A crossover fic of Kingdom Hearts post KH3 during Sora's missing time, and Kamen Rider Saber (post series pre-Trio of Deep Sin). Heartless invade the world of Kamen Rider Saber and Sora goes missing (which one? lol). The heartless are being controlled by a new, vicious leader ready to destroy all the worlds. This was done for a monthly prompt for the Kingdom Hearts Book Club (Shoutout to everyone)

Will the Keyblade Heroes and the Sword of Logos be able to stop the chaos? Or will everything be forgotten?

CH 1: Kamen Rider Saber X Axel
CH 2: Kamen Rider Blades X Aqua
CH 3: Kamen Rider Kenzan and Desast X Ventus and Roxas
CH 4: Kamen Rider Saikou X Mickey Mouse
CH 5: Kamen Rider Calibur X Xion

UPDATE: I'm doing something special for Chapter 6, so there will be a couple month delay. However, you will have multiple chapters released later. Thanks for being patient!

Chapter 1: Hearts of Fire

Chapter Text

“Bonne Lecture! My name is Touma, and I am the guardian of Wonder World. I’d like to tell you all a magical story that happened to my friends and I just recently.” Touma lifts a book off the table near him and opens it. “We met a colorful cast of new friends full of heart, enemies that lack it, an unforgettable adventure, and it all began… Once upon a time…”


It was a peaceful day in Tokyo, Japan. People going around living their day to day lives till, suddenly, the shadows under all the people started growing larger and larger. Long, dark claws rise out of the shadows, grabbing people's legs and pulling them in. Glowing hearts rise out of the shadows. People scream in terror as they watch others get pulled into the darkness of their shadows. As hearts keep rising, small dark beings with beady yellow eyes appear where the people were.

“Ahhh, what are these horrible creatures?!” Random person 1 screams, running for their life.

“Don’t question them and just run for your life!” Random person 2 yells back at the other random person.

A horde of about 100 of the shadow creatures, known as heartless, chase after the people thirsting for their hearts. The shadow horde reaches out for the screaming people till, suddenly. BOOOM! A crater forms in front of the shadow horde. The smoke clears slowly and a gigantic sword is seen.

“First, towards an unjust evil. Second, the Earth rumbles with rage. Third, I strike like an earthquake, with no mercy!”

A man in charcoal gray tortoise armor with a sword extruding from his helmet is revealed from the clearing smoke. He lifts the huge sword behind his back. It grows to a gigantic size, rocks start encircling it, while it glows with energy. He swings the enormous sword at all the heartless; cleaving them all into oblivion with one swing. A bunch of the hearts fly up as the shadows dissipate.

“Haha! I still got it! I don’t know what those monsters are, but they’re no match for the Land Swordsman, Kamen Rider Buster!” The Armored Man yells in excitement.

“RING! RING!” The armored man’s gatrikephone rings; buzzing in his pocket. He takes out the phone, seeing Sophia is calling and answers.

“Buster, the situation with these dark creatures is getting worse. Besides taking hearts, they are taking children. I had Saber called back to help the rest of the Sword of Logos.” Sophia says with anxiety flowing through her voice.

“I have to check on Sora. If they are taking children, he’s in danger. I hope Haruka and the others are okay; Their numbers are great if their power isn’t.” Ogami responds, with an even greater level of anxiety in his voice.

“I have faith that us Swordsmen will stop this dangerous threat. Please, make sure your family is okay, and make sure they don’t take anymore hearts or people.” She replies, with a belief in the group that has worked together for years.

“Don’t worry, nothing will stop me from ending this threat. I’ll check in later. Let me know if the others have seen Sora.” He says with confidence. He hangs up and then calls a number and gets no answer.

“Damn it, I hope he’s just busy. Because if those things got their hands on Sora. I’ll crush them beneath my blade.”


A giant, magical portal opens in the middle of the city. Swarms of heartless carrying kids move toward it. A giant fire ball lands in front of the portal, creating a wall of fire to halt the heartless’s progress. A giant red dragon flies through the sky towards the heartless horde. He roars loudly, descending towards the swarm. A Red dragon themed Rider jumps off the dragon and lands in front of the fire.

“How this story ends is mine to decide!” The dragon themed rider, Kamen Rider Saber, shouts at the heartless. His sword ignites with bright flames. He rushes at the heartless and cuts through them one by one; saving the kids the best he can.

“They seem endless; what do they want with these kids?” He says, continuing to increase his hit count with slash after slash. His sword glows with a stream of fire slashing through heartless after heartless. The swarm of shadow heartless grows bigger and pushes back against the flame swordsman.

“I can’t fight them without hurting the kids; their numbers are growing too much. I’ll have to go through the portal with them and hopefully I can figure out something.” Saber says, canceling the firewall from earlier, the swarm becom ing too much for him. The Swarm takes him and the kids into the magical portal. Through the portal, they are taken to a world with a golden sky, a tall clock tower, a tram system going through it, and a pretty huge restaurant. Saber is tossed to the side from the all the Heartless, that keep marching forward. A man with long red hair, a plaid shirt, dark red pants, and a hoodie vest appears outta nowhere; soaring through the sky on a skateboard.

“Aww man, heartless? Don’t they know I need money to buy Sea Salt Ice Cream? But no… they have to interrupt me on my route.” The red-haired man summons his glowing fire themed keyblade.

“Burn! Baby!” He says, full of fiery passion. He shoots a blast of fire magic at the Heartless that takes down a few of them, making them drop the hostages.

“They don’t normally take people like that. I used to, but they didn’t. I don’t like that at all.” He nails the landing and transforms his keyblade into his chakram. He throws both chakram at the swarm of heartless cutting through a bunch of them; stopping their march and redirecting their attention to the Red-haired keyblade wielder. While they charge at him; Saber rushes at them and slashes through the heartless with his fiery sword.

“Hey another wielder of fire; your sword is pretty sweet, and that’s some awesome armor. My name’s Axel. Got it memorized?” Axel says, joining in the fray. He turns his chakram back into his keyblade and cuts through more of the swarm.

“It’s good to meet you Axel, I’m Touma, in this form I’m Kamen Rider Saber. It’s nice to meet another swordsman of flames. These people were taken here by these shadow beasts and were carried off through that strange portal.” He says, staring at the swarm.

“Swordsman of Flames? I haven’t been called that before; I should tell the others to do that. They’re called heartless and they’re bad news. They usually just try to take people’s hearts. This is different; I think they might be working for someone else.” Axel says, looking at the swarm himself.

“Well, it’s nice to meet you Touma, shall we set these heartless ablaze and show them they shouldn’t play with fire?”

“You’re quite the character, Axel. I agree; let’s see how they handle the inferno of us swordsmen of fire.”

Saber and Axel cross Rekka the Fire Seiken and Bond of the Blaze the Fire Keyblade together. Flames ignite around both blades and they blaze forward at the swarm of heartless leaving a trail of fire behind them. The two of them move like dancing embers, grabbing all the kids the heartless took and placing them safely to the side.

Saber cuts through heartless after heartless. He spins around and slashes through a small group of them with his blazing blade. Then he opens the book in his belt and closes it; fire charges up in his fist and unleashes a powerful fire punch that turns into the shape of a dragon wiping out a good chunk of the swarm.

Axel follows Saber’s lead and starts his own combo plus against the swarm. His fiery keyblade cuts through the heartless like a hot knife through butter. He throws the blazing keyblade at a bunch of the heartless swarm, cutting through a bunch of them. He jumps in the air, charging a huge fireball above him, and throws it at the swarm.

“Firaza!” Axel shouts, watching the giant fireball incinerate the rest of the heartless swarm. He flips, landing back on the ground.

Axel and Touma high five after defeating the swarm.

“Hey not bad, not everyone fights the heartless that well.” Axel says with a smirk.

“Thanks, I fought against similar evil creatures called The Megid, they attacked the city.” Touma smiles behind his mask in a way that Axel could tell. He looks around, actually having a second to take in the scenery of where he is.

“Also, this doesn’t look like Tokyo. Where am I?”

“Tokyo? Sounds kinda like San Fransokyo; wonder if there is a connection. Anyways, this is Twilight Town. My friends and I protect the worlds from the heartless and other evil people. That portal you came in from must connect Tokyo to here.” Axel replies, pointing at the portal.

“I would love to learn more about this place and these other worlds you speak of; but I should bring the kids home first.” Touma responds to Axel’s words that piqued his curiosity.

The portal closes out of nowhere and a giant dark bubble surrounds the kids.

“Awww new friendship; what a sickening sight. Friendship is just an arbitrary concept, like everything else in the world that can be forgotten.” A dark silhouette lowers down from the sky with his arms crossed.

“Heroes of two worlds, of multiple stories, of hero’s journeys, of loss, of happiness, and every other thing that fills your heart with wonder. You all try to be remembered in people’s hearts, in their minds, in their souls; but it is all for naught. Everything is forgotten.”

“Listen, Mr. dark and ominous, you sound like a person I hated working for. So I don’t care what kind of gibberish you're spewing free those children or else!” Axel says, pointing his keyblade at the dark being.

“Not everything is forgotten! Stories are passed on from person to person! We write books to continue those stories on for centuries! I don’t know what you’re planning on doing with the children, but I am with Axel; return them, and restore the portal. It doesn’t have to be like this.” Saber says with fiery passion in his voice, clasping his sword in his hand.

“As you call my words meaningless, I have already forgotten what you’ve said. Forgetting is all that’s true in life. See if you can save these kids while they forget everything. See if you can stop my minions from causing more people to forget!” He waves his hand, opening a portal behind the children. More portals open and a bunch of monsters with unique and familiar looking parts to them appear. Finally, a portal opens behind Axel and Touma.

“These are the Oblitus, my monsters of the forgotten. I’m sending them to multiple worlds to take multiple people. By the time I’m done, all your history, legacies, and stories will be forgotten.” The Dark being reveals his body with one arm that is green and dragon themed, the other arm black with horns coming out of the shoulder, and his chest with an evil looking cow on it.

His portals suck up the kids, the Oblitus, and the swordsmen of flames sending them all to different places.

“I am Oblivion, and you all will be lost!”


To Be Continued...