[No one's POV]
Y/n's group, Luna and the villagers ran out to see the Dullahan knight on his horse again, must to the dismay of the party leader..

Y/n: Un-fuckin-believable..

Dullahan: grr.... what is wrong with you people?!..WHY DO YOU KEEP BOMBARDING MY CASTLE!!?

Kazuma: WHAT?! Were not blowing up your place anymore! We're staying away just like you said.

Dullahan: *sarcastically* Oh, you are aren't you? What a bald-faced lie.

He slams his helmet on the ground, but quickly realized what he's done and quickly grabbed it back in the air..

Dullahan: *points to Megumin* That Crimson maniac has been blowing up my castle.. every day for the past week!

Y/n: What?

He turned an accusatory look towards Megumin who was trying to sneak away. However, he grabbed her by the collar of her cloak making her freeze up and turned her around. Like a child who got caught with their hand in the cookie jar, or a dog trying to steal food from a kitchen counter..

*Like this*

Y/n: I've been gone for like 3 hours..and you do this..Why?

Megumin: *ashamed* Well...up till now I've been fine with using explosions on empty plains. But since I found out how good attacking the castle was..*rubs her face with her staff* I can't endure it unless I have something big and hard to work on!

Y/n: Okay, one: watch what you are phrasing, and two couldn't you have found a giant rock or something!

Kazuma: Wait, hold the phone! You can't move after you used your spell and you can't get back unless someone..carries..you.

He immediately turned an accusing look at Aqua. Who tried to whistle (very poorly) innocently, however Y/n didn't buy it.

Y/n: Kazuma..

Kazuma: on it.

He instantly grabs her cheeks and pulls on them like he did with Megumin..

Kaxuma: YOU IDIOT!!

Aqua: *squeals in pain* LET ME EXPLAIN!! LET ME EXPLAIN!! I can't do any worthwhile quest because of him, this was for revenge!

They were about to continue arguing when the Dullahan unleashed a blast of his dark aura gaining everyone's attention.

Verdia: Hear me fools! My name is Verdia, and this isn't even only thing I'm deeply offended by! *points finger at y/n* You!!

Y/n: *looks around before pointing at himself* Me?

Verdia: How are you not dead?! My enchanted Venom should've killed you!!

Aqua: *gloats with a haughty smirk* What's this? Was this dullahan waiting for us this whole time, with no idea that i.. easily dispelled the curse right after he left? That's hilarious!

Verdia: Sh...Shut up!

Verdia was baffled that his curse didn't work, that he set up his castle for an epic showdown for nothing, and that he had no idea of any of that until right now

Verdia: If I wanted too I could massacre every inhabitant in this city!

Aqua: You're awfully cocky for an undead. *began charging a spell in her hand.

Verdia: Do you really think the magic of a beginner adventurer can-

He was interrupted as Aqua casted her spell.

Aqua: "[Turn undead!]"

Verdia: Gyahhhhhhhhh!

He fell off his steed, and began rolling on the ground as if trying to put out a fire. However, his headless horse was purified. He got up with slight effort.

Aqua: Hey Y/n this is strange, it isn't working!

Y/n: Maybe you should try again?

Y/n could tell it was effective but has since learned that when dealing with Aqua it is sometimes better to just go along with what she thinks than try to explain it to her.

Aqua: Okay. "[Turn Undead!]"

Verdia yelled in pain once again after just barely recovering from the last one. However, this one also failed to purify him and he got back up with a great deal more effort.

Verdia: Are you really a beginner, isn't this place a gathering for beginners?"

Verdia was confused at being hit with a such a high-level attack in the place known as the beginner town. Aqua, going by time and experience is a beginner. However, her first job is a high class one. And Archpriest not something beginners typically have the stats or experience points for.

Verdia: Fine then! There's no need for me to dirty my hands and fight you myself. Undead knights show this lot a glimpse of hell.

He swung his arm out dramatically and dark magic circle formed and up from it rose a few dozen undead knights. They had a hunched appearance shrouded faces with glowing red eyes and incomplete armor.

Ashley: He must have been freaked out that your spell was stronger than he thought.

Verdia: Th...that's not true! Why should the boss be the first one to fight!? You have to work your way through the underlings-

Aqua: "[Sacred Turn undead!]"

Verdia: Gyaaaaaahhhh!! *recovers quickly* That is it! Undead knights kill everyone in this town!

The dead knights began to charge however something seemed to be happening to their formation as they seemed to be converging onto a single point.

Aqua: Wait a minute...

She then realized what was happening, she then took off running because the undead horde was coming after her now.

Aqua: *whining* Why are they chasing after me I'm a goddess, I've been a good girl everyday so why?!

Darkness: No fair! I've been a really good girl so why aren't they chasing me?!

Y/n watched Aqua being chased all around back from the horde of undead soldiers. Unfortunately by bad luck on her terms, her running lead them to his direction..

Y/n: Oh...SHHITTT!!!

The group of adventures scattered and Aqua followed y/n, which meant so did the undead horde.

Aqua: Y/n, Y/n! Do something. These guys won't go away no matter how many times it try to purify them!"

Y/n remembers one of the Skills he read and took out his adventure card. He swiped the elelectrokinesis skill and instantly learned it. His eyes sparked with electricity..

Y/n: *grabs Aqua's Arm*

Aqua: Wait, what are you-

Y/n jumped as high he can go in the clouds. He threw Aqua, who is now bitch-screaming flapping her arms around until she is caught by Darkness. Thunder storms began to brew in the sky, getting everyone's attention.

Megumin: Um..

Kazuma: Don't tell me rain is coming..

Aqua: Uhh...y/n got a new power.

The group looks back to Y/n as he dives down from the sky and slams his electrified fist onto the ground, sending a massive Shockwave that decimated a lot of the undead..

The Dullahan saw the damage y/n gave his army and felt pissed..

Verdia: Y-you Bastard!! How dare you?!

Y/n: Oh, deal with it.

Verdia: Fine. I guess our deal with you another way.

The armored undead knight then pulled out a card and i fused dark magic into it.

Verdia: Let's hope this Shade person's item can be useful.

He tossed it on the ground with lines forming on the grass.

[120 of them]

Y/n: What the hell? Trilobite Magia?

His Ganbaride Driver appeared as his Rodebooker popped out a card. Y/n picks it up and it showed Reiwa's first rider: Zero-One

Y/n: I hope Aruto doesn't mind..

Y/n scans the card and the based driver shifts into the Zero-One Driver..

[Zero-One Driver!]

His hand get the Rising Hopper Progride Key appearing in his hand. That got the attention of Verdia..

Verdia: W-what? I thought you were just a mere swordsman.

Y/n: Buddy, I'm more full of surprises than you think..

Y/n then pressed the button on the Progrise Key..

[Jump!]

He then placed it on the Authorise, scanning the key..

[Authorise!]

[In the World of Zero-One](in Outer Space)
A dimensional Wall appeared with a ball of neon yellow light which entered Satellite Zea..

The energy sphere entered the core memory,, allowing Satellite Zea to receive new coordinates to a user of the Zero-One Driver. It shot a beam of light at another wall below to y/n..

[With Y/n]

At that point, a rhythmic electronic melody was heard which was repeated around himself.

As the music echoed around and some of the Trilobite Magia charged back to attack..suddenly above in the sky, a yellow green light beam shone before a giant yellow metal grasshopper appeared landing heavily in front of Y/n. It let out a shrill as it began to bounce around the field, crushing some of the nearby Magia beyond repair an protecting the rider.

The grasshopper was easily twice the size of a human and is made of metal with a silver tint. The eyes were bright red, most of the body covered in neon yellow lights.

Y/n then raised his arms, crossing them as he slowly brought them in front of him. As he did this, the belt began to digitize a solid holographic screen in front of him, consisting of multiple numbers from 0 to 1 in a disc form that spun before merging and forming the image of a suit. He then swung his right arm forward, opening the Progrisekey's face plate and revealing the grasshopper's skeletal frame.

Y/n: Henshin!

Without further ado, he slammed the Progrisekey into its slot and let the driver do the rest.

[Progrise!]

The belt exclaimed and opened, revealing the center piece showing a grasshopper's head - the same as the design printed on the Progrisekey. The solid holographic image with the suit approached Y/n, creating a black suit that formed over his body, surrounded by holographic blue screens.

[To-Bia-Ga Rise!]
[Rising Hopper!]

The grasshopper leapt on top of him before it suddenly fell apart in different pieces and began to flow into courses of light, converging on the suit. The yellow pieces of the grasshopper are now quickly absorbed by the suit by forming armor on Y/n, mainly on the chest, face, shoulders, thighs and feet. The screens shattered as the light solidified and revealed full armor, red eyes on the face plate like those of insects and with two antennae like those of grasshoppers, while in the forehead there is a small rhomboid-form crystal.

[A Jump to the Sky turns to a Rider Kick!]

The Attache Calibur appeared in his right hand as Verdia stared at Y/n in utter shock..

Verdia: W-what the hell are you supposed to be?!

Zero-One: Zero-One..*tosses briefcase in the air and does a spin, while pointing at the undead knightand catching the Calibur* And that's my name!

[Fight]

He slams his heel into the chest of his closest opponent. The blow sends the Magia footsoldier back, sliding across the ground.

Zero-One: I don't know how you Metallic bastard came from, but you are getting dismantled.

Not giving them the change to go on the offensive, Zero-One tackles the situation head on and charges toward the next one.

Y/n delivers a spin kick to the side of one Magia while another dives in, only to dive into nothing, as the rider used leverage from the spin to deliver a sweep beneath the grunts feet.

As it falls flat on it's back, Zero-One darts forward and rapidly throws several punches at many others. They raised its arms to deflect the blows, but falls backwards over a Magia and sidekicked it away..

A footsoldier leaps onto the rider's back, only for Zero-One to allow gravity to let the two fall forward. Rolling with the impact, Jack sits on it's delivering a quick punch to his neck. As it grabs its neck, short-circuiting, Zero-One rolls forward and uppercuts another under the chin.

One charges toward Zero-One, throwing a powerful punch aimed for his head. He sidesteps him and buries his elbow into it's torso.

Verdia watched as Zero destroy The Trilobite Magia one by one and got furiously angry..

Verdia: Are you SHITTING ME?!

Zero-One got through finishing the last Magia and then turned his attention to the Dullahan..

Zero-One: Thou shall give up?

Verdia: I'm not through yet!!

Verdia did the same thing again, summoning more Trilobites..

Zero-One: This time, I'll use the briefcase..*opens Attache Calibur*

[BladeRise!]

Zero-One points at the Magia and charged forward..

*not writing the same shit over again, so you are fighting the Trilobite's like they where Krybots below here👇*

After dealing with them, Verdia them summoned more undead soldiers than what the rider seen..

Zero-One: Ok, now I am feeling a bit scared.

???: Perhaps I can be of assistance..

Zero-One turned and felt surprised in the making of the appearance of Izu: Aruto Hiden's Secretary..

Ashley: *seeing Izu and mutters* No..way

Zero-One: Izu.. but how did-

???: She had assistance.

A dimension wall appeared to reveal Tsukasa, but he's also carrying what seems to be a driver.

[Artist: Azuma Hikaru on Pixiv and Twitter. Same for the one's connecting to this driver]

He then forcefully placed the said driver onto Izu's Waist, which sent data through her schematics and newfound energy.

[HIDEN AIMS GearRiser!]

Zero-One: Gear Riser?

Tsukasa: This will allow her to access a rider form of her own making. Oh! Almost forgot..

He handed Izu a neon green Progrise Key with an Owl Motif. The name was Searching Strix with the Ability: Scan..

Tsukasa: I wish you luck ou there, Izu.

He exited out this world as Izu walked forward next to Zero-One

Izu: You may not be the Zero-One user i know..*looks towards him* but I will still like to assist you.

Zero-One: Umm..sure, sure.

Izu then raised her Progrise Key and pressed the button..

[Scan]

The male rider stood back some as she then placed it on the silver tab which is made to be a scanner..

[Authorise!]

*Standby music for the GearRiser. Thansk to zombienitro02 for the suggestion*

At the ground underneath herself, a large 3-D silhouette of Satellite Zea appeared with a large Owl hooting and flying around the HumaGear

Izu opened the Progrise Key and raised it towards her head and spoke:

Izu: Henshin!

She loaded it in the driver, which pushed the bottom mechanism up to hold in the key and take in the data..

[GearRise!]

Multiple 3-D print drills formed from the inside that fired lasers that covered Izu's body top to bottom until she was covered in a black bodysuit that had some neon green armor plating. The owl like Zero-One's Grasshopper, flew towards her and dispersed into data that formed additional armor on the chest, shoulders,  forearms, wrists, hips, thighs, shins and feet. Her helmet resembled a Great horned Owl with most of the head being a silver color with a  plumicorn face armor with dark blue-green eyes. From behind has looking like a hood with the HumaGear Module on the inside.

[Searching Strix!]

[The Goddess of Raptor Shoots Out Even the Darkness]

Zero-One: Goddamn...*thinking* if only the writers added this to the show..*to Izu* What exactly can I call you in this form?

Elthemis: Elthemis..Kamen Rider Elthemis.

Verdia felt underwhelmed at the sheer power these two riders and thought of another idea. Though this would be suicidal for him. He pulled out a card that had a version of the Force Riser, but it was black, red and purple. He infused dark magic to it as the card was absorbed into him,, giving him the driverA Progrise Key materializes in his left hand called Disaster Hopper with the Ability: Ruin.

[Progrise key and rider form was made by ArkAges from DeviantArt]

That gave shocked to the Riders and the Adventurers..

Kazuma: Since, when is your Undead ass a Kamen Rider?

Verdia: Lord Shade came through after hearing about you personally.

Zero-One: So more power than fighting with your own self..pathetic.

Verdia: Enough!! *gets off horse* Now taste my lord's power..*presses

[RUIN!!]
[Disaster Hopper ability]

The undead knight loads in the Progrise Key as a large distorted Purple/red/black Grasshopper appeared and shrilled at the riders.

Verdia: Henshin!

He pulls the handle back, opening the Progrise Key..

[BREAKRISE!!!]
[CHAOS N' DEMISE!!!!!]
[DISASTER HOPPER!!!!!]
[THE END IS HERE~]

Verdia's Body morphed into a bodysuit with a purple disfigured face plate similar to Zero-One with blood red eyes. The armor consists of a large collar with a scaly shoulder pad on the right shoulder and armor in the right forearm with a clawed right hand. The left side had grayish/black plating with a single red line on the shoulder and the rest looking similar to a Trilobite Magia. The hip and lower body had red straps around the hips, thighs and knees guards on the knees. The right boot was purple and resembled a grasshoppers wing with claws on the front of the shoe. Verdia is now Kamen Rider Null-Disaster Hopper.. or Kamen Rider Null for short.

Null: I can now called Null. With this power..do you believe you can win?

Zero-One: Not by myself. But like a green haired woman said: Together.

He turned to his allies.

Zero-One: Can you all handle the Undead soldiers by yourselves?

Ashley: *unsheaths twin blades* Of course.

Aqua: *smiles, while raising her staff* Yeah.

Kazuma: *holding short sword* Yes.

The majority of the citizen's then took out various weapons and stood their ground ready to fight. Zero-One turned to Elthemis, seeing her nod her head to fight.

Zero-One: Alright, then. Lets GO!!

With that, Zero-One, Elthemis, Y/n's party and the Adventurers(minus Luna, some citizens and children) charged at the Undead army and Null. This fight will be one to remember by.

[Sorry, but I am cutting this part out. Till next time in part 2]