Airport

While the Kamen Riders were battling the Bugsters in Seito, Hiiro was relaxing in the business class lounge, enjoying tea and cake by himself until his flight took off.

"Ladies and gentlemen, we will soon begin boarding Lufthansa 125 to Berlin, departure at 17:00."

"Time to go… alright." Hiiro muttered as he heard the announcement and was about to leave the lounge to board the plane.

However…

"Breaking news. The Ministry of Health announced a few days ago that a pandemic of the new Bugster Virus has broken out in Seito. The Ministry of Health and the Japanese government have declared a state of emergency and announced a policy of preventing infection by blocking all means of transportation to Seito."

"What!? A pandemic in Seito!?" Hiiro stood up abruptly from his seat at the announcement. "I have to hurry back!"

"But… if I go back to Seito, I won't be able to go to Berlin…" He muttered as he looked at his ticket to Berlin. There were only fifteen minutes left until the plane took off, and it would take over an hour to drive from this airport to Seito, and even if he took a helicopter, it would still take twenty minutes back and forth, so he would never make it in time for departure. In other words, if he returned to Seito, Hiiro would not be able to attend the conference, and if that happened, his chance to become a professor at Seito would be dashed.

Will he take his future as a doctor?

Or save the patients suffering right now?

Hiiro was forced to choose between these two options.

"Fine, why I even have to think about it."

With that, he tore up the ticket, threw it in the trash, put on a white coat from his trunk, and left the lounge.

20 minutes later

Seito

"Fufufu… it's getting exciting."

From the top of a huge building in the center of Seito, Saki was watching the situation from a vantage point.

"But I guess the most exciting fight is… over there." Saki muttered and turned to look at Graphite fighting against Snipe and Lazer Turbo.

And there they were, struggling against Graphite.

"ORYAAAA!"

Snipe flew through the air and rained bullets down on Graphite's head, forcing him to defend, while Lazer Turbo approached and tried to attack Graphite with the Gashacon Sparrow while Graphite was distracted.

"Useless! Do-Do-Do Black Dragon Sword!"

But at that moment, Graphite swung his Graphite Fang and launched a number of flying black energy slashes, hitting Snipe's own attack and canceling it out.

"Do-Do-Do-Do! Black Dragon Sword!"

"UAAAGH!"

"AAAAAH!"

Finally, the two of them were struck by Graphite's own finisher, canceling their transformations.

"Ugh… man, that's powerful…"

"Damn him! Graphite is right in front of me! So why!?"

"What's wrong, Riders!? You're weaker than expected! Come at me with all your might!"

"No need to tell me… I'll even stab you in the back…"

"Oi, oi… but… I'll have to get ready myself…"

"Hmph, so you finally decided! Come on, then, Riders!"

"I don't need to be told!"

"I'm going to finish this race!"

Graphite, Nico, and Kiriya were about to get ready for the next round when it happened.

"Wait." Suddenly, they heard a voice and looked back. And there it was.

"What the—why are you here!?"

"Oi, oi… what are you doing here, Prodigy?"

There was Hiiro standing there, wearing a white lab coat.

"I saw on the news that there is a pandemic in Seito, so I rented a helicopter at the airport to come back and sort things out."

"What do you mean you're back… what about the conference in Berlin!?"

"Hn, a doctor's priority is the patient in front of him, not the future, so a glory at the expense of patients? No thank you."

"Heh, is that so…? Jeez, man… well, that's Prodigy for you." Kiriya laughed at said so with a bit of astonishment.

Hiiro then approached Nico.

"What?"

"A question for you, Schoolgirl, how are you feeling?"

"Me? I'm doing great, why?"

"I see… then use this."

With that, Hiiro handed Nico the Gashat Gear Dual β.

"What's the meaning of this?"

"That Graphite is strong, so from here on out it's a team effort between the three of us…"

"Hmf, yeah, okay… but the finishing blow is mine."

Nico took the Gear Dual β.

"Hey, Prodigy, are you sure you're okay to give Nico-chan that Gashat?"

"No problem, I've got this."

Hiiro took out the Taddle Legacy Gashat.

"That Gashat…"

"You, not only you crushed my schedule, but you also spread viruses throughout Seito, threatening the lives of tens of thousands of people and offending me, so I'm not going to pull any punches this time!" Hiiro declared to Graphite.

TADDLE LEGACY!

Hiiro activated the Gashat. Then, a white armor came out of the startup screen and hovered behind Hiiro.

"Skill Level 100. Henshin!"

Gashat! Gachan! Level Up! Tadoru rekishi! Mezameru kishi! Taddle Legacy~!

Hiiro merged with the white armor and transformed into Brave Legacy Gamer Level 100, a form clad in armor and helmet with designs like a holy knight.

"It's been a long time since I've used Level 100… not bad." Brave muttered as he checked himself.

"Alright, me too!"

BANG BANG SIMULATIONS!

…I'm ready for Battleship! …I'm ready for Battleship!

"Tactics Level 50, henshin!"

Dual Gashat! Dual Up! Scramble da! Shutsugeki hasshin! Bang Bang Simulations! Hasshin!

"Yossha, let's get this race back on track!"

BAKUSOU BIKE! GIRI GIRI CHAMBARA!

"Gear blast! Henshin!"

Gashat! Gachan! Level Up! Bakusou Bike! A Gacha! Giri-Giri-Bari-Bari Chambara!

Nico and Kiriya followed suit, transforming into Snipe Level 50 and Lazer Turbo Proto Bike Chambara Gamer, respectively, and stood next to Brave.

"All of them leveled up… interesting… come at me, Kamen Riders!"

"Very well… we will now begin the Graphite removal operation."

"Mission start!"

"Now we're revving it up!"

First, Snipe fired her ten naval guns at Graphite and his surroundings.

"That's useless! Do-Do-Do-Do Black Dragon Sword!"

Graphite destroyed all of those attacks with his own. However, the explosions and smoke caused by the destruction obscured his vision.

"Smokescreen, huh…? Where will they come from?" Graphite said, looking around.

"UOOOOOOOOOHHH!"

"HAAAAAAAAAAH!"

From Graphite's left and right, Brave and Lazer Turbo tried to attack with their Gashacon Sword and Gashacon Sparrow.

"Hmph, pointless!" Graphite blocked the two attacks with his own weapon.

However…

"Now!"

"Do it, Schoolgirl!"

"HAAAAAGH!"

"What!? UAAAGH!"

Suddenly, Snipe appeared and jumped into the air, using the two of them as a springboard. She then punched Graphite in the face from above, and at the same time fired her right arm cannon from close range.

"GAH! WHY YOU! AAAAAAAAARGH!"

"HAAH!"

"ORRIYAAAAA!"

And as Graphite was stunned from the gunfire, Brave and Lazer Turbo continued with their attack and knocked Graphite away.

"Dammit! This isn't over yet! Do-Do-Do! Black Dragon Sword!"

However, Graphite quickly regained his bearings and unleashed a large number of black energy slashes at the three of them.

"HA!"

"UAAGH!"

"KYAA!"

Brave managed to conjure a barrier just before he was hit, but the other two received a direct hit, and their Rider Gauges were greatly reduced.

"The Rider Gauge…"

"Straight to half…?"

"Don't worry, HA!"

Immediately, Brave used one of Taddle Legacy's abilities, a healing magic, to restore their life bars to full.

"The life bar…"

"Yeah, thanks for your help, Prodigy."

"No sweat. Let's just get this over with!"

"Righto!"

ZU-DON!

"I know!"

Brave and Lazer Turbo hit the B button on their weapons to double their attack power, and Snipe aimed all her cannons on Graphite. With a simultaneous attack of energy slash, arrow, and full barrage from cannons, all of them connected and hit Graphite.

"Agh… uugh… not yet! I'm not through yet!"

"He's still getting up… then…!"

"Let's end this with a finisher."

"Graphite… this is your end!"

Brave and Lazer Turbo inserted their Gashats in the Kimewaza Slot, while Snipe closed the lever on her Gamer Driver.

Gashat! Kimewaza!

Gachon! Kimewaza!

And then, the energy was channeled in Brave, Lazer Turbo, and Snipe's legs.

"This is the end!"

TADDLE CRITICAL STRIKE!

"It's finished!"

BAKUSOU CRITICAL STRIKE!

"You're done for!"

BANG BANG CRITICAL FIRE!

Snipe and Lazer Turbo jumped high in the air, while Brave conjured feathery wings to float on his back, each heading straight for Graphite.

"UUUAAAAAAAAAGHH!"

The triple rider kick exploded on Graphite.

"Surgery… complete."

"It's done…"

"Brother… we have avenged you…"

After that, the three of them untransformed.

"Ugh…"

"Are you okay, Prodigy?"

"Yeah, I just need a little rest."

Hiiro sat down on a nearby bench while leaning on Kiriya's shoulder.

"Thanks for this time, Brave."

Nico returned the Gear Dual β and left the place immediately.

"Bruh, is it that difficult for being honest…?" Kiriya muttered to himself at the scene.

"By the way, Examiner, I heard that the virus is spreading all over Seito, what about the rest?"

"Oh, right, there are currently Bugsters running rampant in these marked areas." Kiriya showed his tablet as he explained the situation to Hiiro.

"I see… then we'll go for support."

"Hey, are you sure?"

"I'm fine… and if the operation isn't over yet, I'll do what a doctor should do."

"Heh, right… so where are we going?"

"About that… I'm a bit concerned about this place where Ryugen and Fourze are fighting, so I'm going there."

"Righto."

BAKUSOU BIKE!

"Second gear, henshin!"

Gashat! Gachan! Level Up! Bakusou dokusou gekisou bousou! Bakusou Bike!

Kiriya transformed into the Lazer Level 2, and Hiiro rode on his back, heading for the place.

Meanwhile

"HAGH! HYEAAH!"

"Salty! Way too salty!"

Fourze struck Salty using Billy the Rod in close combat.

"GUH! UOOOGH!"

"HA! HAAH!"

As for Ryugen, he avoided Uva's attacks, and when he was stunned by the gunfire, he quickly closed the distance and attacked.

"Guh! These guys are strong."

"Yes, and—AH! Those mummies are also surprisingly tough…" Ryugen said as he kicked a Waste Yummy.

"Mah… Shun's doing a great job, so we can handle it…"

"One more move…"

Fourze and Ryugen muttered as they stared at the situation.

"Hahahahahahaha! Mere humans can't defeat us Bugsters! Do it!" Salty boasted, and gave orders to Uva and nearby Waste Yummies.

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"W-what's that!?"

"UAAAAAAAAAAAAGH!"

A blue mass of energy fell from above Salty and Uva's heads, blowing them away.

"That's…"

"Who's that…? A new Kamen Rider…?"

And out of the energy ball emerged a Kamen Rider riding a motorcycle that seemed to be based on a satellite, with a black bodysuit glittering like a sky full of stars, and blue armor and visor that resembles a meteor's tail.

"W-who the hell are you!?" Salty shouted.

"I am Kamen Rider Meteor… your fate is mine to decide." The new Kamen Rider, Meteor, answered.

"Grr! Why you! No matter, even if a new Kamen Rider appears, I'll just salt him! Go!"

"Uoooogh…"

At Salty's order, the Waste Yummies charged at Meteor.

"Huooo-hwatcha! Hwacha! Hwacha! Hwacha! Huooooo… HWACHAA!"

"Uooooooooogh…"

Meteor used his Jeet Kune Do-like fighting style to take out every Waste Yummy that came at him.

"Amazing…"

"That Kamen Rider… he's even more experienced at fighting than I am…"

Fourze and Ryugen muttered as they watched Meteor single-handedly defeated the enemies one after another.

"You two, don't just stand around, I'll take the game character-like guy, you guys take the bug-like one."

"R-right, okay!"

"Understood…"

"Well then, I'm your opponent."

"Damned small fry! You're no match for me!"

Salty charged at Meteor and attacked with his Salty Knuckle on the left arm, which was covered with electricity.

"Hmph, foolish of you to come all the way up to me."

Meteor pressed one of the switches on the Meteor Galaxy, a device attached to his right arm.

Jupiter, Ready!

The fingerprint of his left hand was checked against the fingerprint recognition panel.

OK, Jupiter!

At the announcement, a Jupiter Planet appeared on his right fist, and he punched the incoming Salty.

"HUOOOOO~HWACHAAAAAAAA!"

"UOOOOOOOOAAAAAGH! Urgh! This is… no way…"

"This will decide your fate!"

Meteor then inserted the Astroswitch on his belt to Meteor Galaxy, causing a catchy standby sound to play, and pressed the fingerprint panel.

Limit Break! OK!

"HUOOO-HWATCHA! HWACHA! HWACHA! HWACHA! HUOOOOO… HWACHAA!"

"UAAAAAAAAAHHHH!"

Meteor's finisher, a high-speed punch, exploded on Salty's face.

"Whoa! He did it!" Fourze exclaimed.

"Fourze! It's time for us too!"

Hai! Budou Squash!

Ryugen pushed the Cutting Blade and pulled the hammer of his Budou Ryuhou to prepare for a finisher move.

"Take this!"

He pulled the trigger after the energy gathered in the barrels and fired a barrage of energy bullets at Uva, stunning him.

"Alright! Let's go!"

Fourze inserted the Electric Switch on Billy the Rod, and after a standby sound, electricity was channeled in the weapon.

Limit Break!

"RIDER TEN BILLION VOLT BREAK!"

"UOOOOOOOOOHHH!"

The slash formed by the electricity flew at Uva, and the moment it hit, it caused a huge explosion and disintegrating him. At the same time, the Waste Yummies around him vanished, and the OOO Gashat fell where Uva had just been.

"Looks like we've defeated them…"

"Yes…"

While Fourze and Ryugen muttered among themselves, Meteor got on his bike, Machine Meteorstar, and left the place.

"Ah, hey, wait… huh, he's gone… a new Kamen Rider, I really wanted to be his friend…"

Gentaro undone the transformation, and looked at the untransformed Mitsuzane beside him.

"Come to think of it!"

"What's wrong?"

"I've never got your name. Can you tell me who you are?"

"I am Mitsuzane Kureshima."

"Mitsuzane!? I'm Gentaro Kisaragi! Will you be my friend as fellow Kamen Riders?" Gentaro said.

"Yes, that's fine."

"Alright! Then this is a sign of friendship!" Gentaro said and held out his hand to Mitsuzane.

"Nice to meet you, Gentaro-san."

Without hesitation, Mitsuzane shook Gentaro's hand that was held out to him and exchanged several fist bumps.

Meanwhile…

"Gentaro!"

"Ooh, Kengo, what's up?"

"I just got word from Yuki and the others that all the infected people at the school are cured!"

"I see, I guess that's a relief for now." Gentaro said upon hearing Kengo's words.

"Heeeey!"

"Huh? Ooh! Kiriya-sensei! Ah! Hiiro-sensei!"

Lazer and Hiiro riding him arrived.

"Examiner, it looks like it's done."

"Yeah, well, it looks like they don't need our help." Kiriya said as he looked at the scene and untransformed.

While Fourze and the others were relieved, the battle was still going on elsewhere.

"HAAH!"

"HYAAH!"

Sigurd and Marika slashed at Rat Fangires one after another with their Sonic Arrows, or struck them with their energy arrows. However…

"Tch! It's still not enough!"

"Right!"

They were getting tired of the Rat Fangires coming at them one after the other.

"HAHAHAAAA… the race isn't over yet!"

"GAH!"

"UAAGH!"

Motors got on his motorcycle and rammed into them at full speed.

"Hahahaha! How about that!? The power of my steed! The most powerful—HUOOOAAAGH!" Motors boasted, but he was kicked by someone from the left side.

"Eh…"

"Who's that…?"

Marika and Sigurd turned to the person who had kicked Motors away, and there stood a man who appeared to be in his twenties. The man turned to Motors and said…

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"Bugster… and mysterious monsters… please return that life… to God!"

The man took out a brass knuckle-like device and pressed it into his palm.

R-E-A-D-Y

With an announcement and a heavy bass sound, he spread his right arm wide to the side and brought it in front of his chest again with his elbow bent.

"Henshin!" he shouted, and set the machine on the belt attached to his waist.

F-I-S-T-O-N!

A hologram appeared that transformed into a white armor, which was attached to the man, and at the same time, the cross-like visor opened, generating a powerful hot air that blew away the surrounding Rat Fangires. In his place, a white Kamen Rider with red eyes and black undersuit appeared.

"That's…"

"Kamen… Rider…"

Sid and Marika muttered at the sight.

"Y-you! Who the hell are you!?" Meteos demanded.

"I am Keisuke Nago! A warrior of justice! Kamen Rider Ixa!" The Kamen Rider, Ixa, declared, pointing his weapon, the Ixa Calibur.

Meanwhile

"What is that…?"

"That's…"

In front of Zangetsu Shin and Duke, who were fighting against a large number of Ant Lords, an uninvited guest in the battle appeared, who riddled the Ant Lords with a rain of bullets.

It wielded a Gatling gun, blue and looked robotic, but its appearance…

"That's… Kamen Rider…" Duke muttered. Yes, that's a Kamen Rider.

He also looked at the letters engraved on the left shoulder of that blue Kamen Rider.

"G3-X… is that the Kamen Rider's identification code…?"

On the other hand, Zangetsu Shin was interested in the emblem etched on the left chest of that Kamen Rider.

"That mark is from the police… what in the world?"

G3-X turned towards Zangetsu Shin and approached him.

"Excuse me, are you from Yggdrasill Corporation?"

"Yesh, I'm Takatora Kureshima, CEO of Yggdrasill, who are you?"

G3-X replied…

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"I am Makoto Hikawa of the Metropolitan Police Department's 1st Special Crime Countermeasures Division, I'm here to help in any way I can."

"I see, thank you for your cooperation, but can you provide backup?"

"Of course!"

"Bah! A new Kamen Rider changes nothing! All of you, attack!" Revol ordered the Ant Lords, and at the same time, they began charging at them.

"Alright, let's move!"

"Right!"

"Police's Kamen Rider… now that he's here… let's get some data."