Ritsuka groaned and grabbed his head, stumbling back His eyes widened.
"W- Why am I hearing voice in my head? Is this—telepathy?!"
["Negative, Host. I am not using telepathy. I am speaking directly from within your brain."]
Ritsuka clutched his head in panic. "WHAT?!"
["Calm down, Host. Your neural activity is unstable."]
He shook his head, half-expecting this to be a weird dream. "Are you… an alien or something?"
["No. I am a self-operating Rider Core AI designed to integrate with the host's consciousness. I serve as the interface and foundation of the Kamen Rider System."]
The glowing screen hovered before him, flickering gently. It felt surreal like some kind of futuristic sci-fi dream, except too real to ignore.
["Host, your brain patterns show heightened panic and post-trauma stress. You're reliving the moment of the individual who died earlier. If you wish, I can assist in regulating your brain activity."]
Still breathing heavily, Ritsuka slowly nodded. The image of that dying man's blood-streaked face was still fresh too fresh.
Within seconds, the pounding in his head faded. His breathing calmed. His color returned.
He stared quietly at the floating screen. "Was that man your creator? Your boss or something?"
[ "I'm afraid I have no accessible data or authority to answer that question."]
Ritsuka's eyes narrowed in thought. "You… don't feel like a bad guy."
["Correct, Host."]
"Then… tell me about yourself. In a way I'll actually understand. What is this Rider thing, anyway?"
The AI screen glowed brighter as it spoke, its voice smooth and calm.
[ "Kamen Riders are masked heroes chosen to wield transformation systems known as Drivers. With them, they don armored suits and battle monstrous threats to protect humanity. Each Rider carries unique abilities, motifs, and burdens. They may fight aliens, monsters, organizations or even themselves but their purpose remains the same: to protect and uphold justice, no matter the cost."]
Ritsuka blinked, stunned. A small, amazed smile tugged at the corner of his lips.
"…So they're like real-life superheroes like power rangers and Super Sentai."
["Affirmative."]
He couldn't help it, his inner fanboy sparked. "Man… I grew up watching Super Sentai and power rangers shows with my grandpa. This is nuts…"
His face turned serious again. "What's the system's purpose? How does it work?"
[ "Transmitting basic Kamen Rider core data to Host's brain—initiating sync."]
"Wait, what—"
Suddenly, his head spun violently. Ritsuka staggered to the bathroom and threw up into the sink, gripping the edge with trembling fingers.
["Apologies. First-time synchronization can cause disorientation. This will not occur again in future syncs."]
Still shaking, he washed his face, dried his hair with a towel, and stared into the mirror. Water droplets slid down his cheeks, mixing with the cold sweat.
"So... System. You want me to become a Kamen Rider?"
["Correct."]
"I guess… you're stuck with me?"
["Yes, Host. The Kamen Rider System is now bound to your brain, body, and soul. Removal is impossible unless your existence is terminated."]
He exhaled, pressing the towel to his face. "Then… why me? Why was I chosen?"
["Your selfless actions to save a person.]
Ritsuka frowned. "But anyone would've done the same…"
[ Perhaps, but I scanned your heart and intent. You did not help the dying man out of fear, guilt, someone's ideals or obligation. Your intent was pure. But not all hearts are genuine. Many act out of fear of punishment, reputation, or regret many. Only a few act out of true compassion without expecting anything in return. You were one of them."]
He looked away, unsure how to respond. "...I guess you're not wrong."
He slumped onto his bed, staring up at the ceiling as the blue interface hovered above like a watchful guardian.
"Hey system, who were those monsters I faced earlier?" Ritsuka asked, the memory of the chaotic battle flashing in his mind.
"They are called Smashers, corrupted entities drawn to the Kamen Rider system. Be careful, Host they will come for you again. I suggest you become stronger."
"So they're coming after me… great," Ritsuka muttered, crossing his arms. "Fine! I'll try to get stronger. But how? You got anything that can help me out here?" He glanced at the floating blue screen. "I mean, this whole Kamen Rider thing sounds cool and all, but I'm not exactly built for taking down monsters and criminals, you know, just a average normal student?"
[Creating mission for Host…]
[Mission: Save 1 life
Reward: 100 points, 1 draw ticket]
[Distributing default Kamen Rider suit to Host.]
A new window blinked open on the screen, displaying suit details.
[Kamen Rider Amazons:
These Riders are humanoid organisms created by Nozama Pharmacy through artificial cells. They require high protein to survive , often hunting humans or cannibalizing other Amazons. Deadly, primal, and powerful.]
Ritsuka raised an eyebrow. "The Amazons Driver? Will this even work for me? I'm not an Amazon, or a mutant test subject or whatever."
"Do not worry, Host," the system responded calmly. "The Driver is adapted to your physiology. However, since you are not a true Amazon, your performance will be limited."
"Limited how?"
"The original Amazon Omega has a punching and kicking force of around 20 tons. You will only manage approximately 5 tons."
Ritsuka blinked. "Five tons… okay, I know I said I was weak, but—WAIT, FIVE TONS?! That's insane!"
"Yes, Host."
"Let me try this Amazon Omega thing out."
He stepped back and held out his arm. The belt materialized around his waist in a flash of red bio-energy. A chilling, organic voice echoed in his head.
{"AMAZON OMEGA…"}
Energy surged through his body. Green fire engulfs Ritsuka Fujimaru, Green armor-like skin wrapped around him in tendrils, The sleek, predominantly green suit has black accents along the limbs, chest, and helmet, giving him a predatory, insectoid appearance.
His helmet features large, glowing red compound eyes and a mouthpiece resembling sharp fangs, adding an intimidating edge. Two silver, jagged "antenna" horns rise from the top of the helmet, a nod to past Amazon Riders.
The organic, sinewy texture of the green chest armor mimics muscle fibers, emphasizing Ritsuka's wild and untamed persona. Red energy lines pulse along the suit, like veins carrying a primal force.
Ritsuka stumbled back, caught off guard by the power rushing through his veins.
He rushed to the mirror in his room and stared at his reflection. Jagged green armor, wild organic lines.
"What the?! If I show up like this to save someone, they'll think I'm there to eat them!" he said. "Can I use that first suit instead? The one I used before it looked so cool!"
"Negative. That was Kamen Rider Cross-Z, an emergency-use suit. Not available under current permissions."
Ritsuka grumbled, staring at his reflection. "Fine, fine..."
Then, he glanced back at the blue screen. "Hey, what are these points you mentioned?"
"Points are a form of currency, used to redeem items in the Shop."
"The Shop?" he said, curiosity piqued. "Can I see what's in it?"
A new interface appeared before him.
---
[Shop: Available Items]
Riders:
Ohma Zi-O – 1,000,000,000
Zi-O – 1,500,000
Decade – 1,000,000
Build – 600,000
Wizard – 500,000
Drive – 300,000
Kabuto – 200,000
Ride Machines / Items:
DenLiner – 1,000,000
Time Mazine – 1,000,000
Castle Doran – 100,000
Revolgarry – 10,000
Hard Mammother – 10,000
---
Ritsuka's jaw dropped. "Holy crap. This stuff is crazy expensive… but I guess that means it's strong. No way I can get any of this soon."
["All you must do is work hard, Host."]
"Yeah, nothing's ever free… of course."
Ritsuka's eyes narrowed as he noticed another tab.
"Gacha" he felt some sort of fear as he saw it. He doesn't know why.
"What about the gacha draw? That's random stuff, right?"
["The gacha draw allows the Host to obtain random items, ranging from weapons to transformation belts. All have some form of value or utility."]
"Got it… I guess I'll take what I can get."
Just then, a knock came from the door.
"Ritsuka! Dinner's ready," came his grandfather's voice.
"Coming!" he called back.
Ritsuka glanced down at the Amazons Driver still strapped around his waist.
"Hey, system, can you store this thing? I don't want Gramps seeing it and thinking I've joined some cult."
["Yes, Host. Storage system activated. You can summon and store any Rider-related gear instantly."]
With a blink of red light, the belt vanished from view.
"Nice," Ritsuka said, relieved. He changed into casual clothes and headed downstairs to dinner.
Ritsuka's grandfather saw him descending the stairs, and the faint sound of the TV filled the room.
The weatherman was reporting:
"Rainfall is expected to continue throughout the night—"
Grandpa frowned slightly. "The plants outside... they won't be able to breathe properly in this weather."
"I'll help you tomorrow morning, Grandpa. It's Sunday, after all," Ritsuka smiled as he sat at the table.
"Itadakimasu!" they said in unison, clapping their hands before digging into their meal.
Halfway through dinner, Grandpa glanced toward the remote. "Can you switch the channel to something else? A movie or a show, maybe."
Ritsuka started flipping through channels. Drama, cooking show, wildlife documentary—then the screen landed on a boxing match. The energy in the room changed. Grandpa leaned forward, eyes gleaming.
"This takes me back..." he muttered, taking another bite. Ritsuka grinned and kept watching alongside him.
Suddenly, the system's robotic voice echoed in his head:
[Do you want to scan the boxing movements?]
Ritsuka blinked. "Wait, what?" he thought. "You mean, like, actually scan and download them?"
[Correct. I can transfer the techniques to your brain. I also have data on multiple martial arts forms.]
His eyes widened. "You serious? Like, full-on Matrix download style?"
[Affirmative. Would you like to proceed?]
Ritsuka stood up quickly. "Grandpa, I'm super tired. I'll go sleep early tonight."
"Alright, goodnight," his grandfather said without taking his eyes off the match.
Ritsuka rushed to his room, shut the door, and sat on the bed. "Do it. Transfer now."
The world spun. His vision blurred. He clutched his head.
[Transfer complete.]
"Damn, my head feels like it's going to explode."
[You'll get used to it.]
"You worried about me , dude," Ritsuka grumbled.
[Just stating facts.]
"Jerk," he muttered.
But then clarity. It hit him all at once.
His muscles moved on their own as he took a kung fu stance. Then another. He could feel it. Every form, every angle, every strike felt natural. He performed a swift technique flawless.
"This is nuts. It's like I've trained for years...!"
Then—sharp pain shot through his limbs.
"Agh—!"
He collapsed to one knee, gritting his teeth. "What the hell?! Why does it hurt?!"
[Your body isn't built for these movements yet. Your muscles haven't adapted. Learning is one thing, executing is another.]
"So my brain's learned it, but my body won't be able to adjust to it," Ritsuka groaned. "Thanks for the late warning, by the way."
[Your body contains impurities and lacks proper structure. Do you want me to reconstruct your physique to handle the Martial arts? The process will take a few hours.]
Ritsuka slowly crawled back onto the bed. "Do it."
[Warning: The reconstruction involves extreme pain. You will be placed under anesthesia.]
He gulped. "Wait... does it really hurt that much?"
[There have been 14,000,605 fainting incidents caused by this process.]
"Yikes... Can I try enduring it for a bit? Just to see if I'm cut out for this?"
[Very well. Beginning process.]
The pain hit like a truck. Ritsuka gasped, feeling like his bones were melting, his skin on fire.
[Injecting anesthesia.]
Darkness took him.
Ritsuka collapsed onto the bed, finally silent. The room was quiet once more, save for the sound of rain tapping against the window.
---
Note: how is this chapter? I give enough information on system. If you any ideas let me know I will include them if they are my likes. I support readers for this series.
Also I don't plan on adding Fruit Jesus right now.