Two weeks later

Underworld

"Lord Sirzechs, I've brought you reports from the devil families."

The leader of the devil faction, Sirzechs Lucifer, was handed a large number of documents by a member of his peerage, Grayfia.

"Good grief… so much in the last two weeks…" Sirzechs muttered as he picked up one of the documents.

The document that he was looking at was a list that recorded the number of reincarnated devils. In the two weeks since the Ministry of Health's announcement, many reincarnated devils who wanted to reverse their condition had left the devil faction.

"Even though they twisted the fact a bit, the number of reincarnated devils is decreasing because of the Ministry of Health's announcement that reincarnated devils can be returned to their original race…"

"What a shame, the old ways of thinking and discrimination towards reincarnated devils have finally come back to haunt us…" Sirzechs grumbled as he read the report.

However…

"Well, let's face it, this could be a good opportunity to wipe out some of the older, more vicious devils."

"Yes, if you think about it… but it can be tricky."

"Bugster… or whatever the new faction is called."

Grayfia shook her head silently at his words.

"Honestly, we don't have enough information about them, their abilities, when they emerged, who the ringleaders are… I don't know how and why they existed and we don't have a single piece of detailed information about them…"

"I think that the Japanese Ministry of Health and the World Health Organization were covering up the situation…"

"Yes, I suppose that's a reasonable assumption, considering the circumstances…"

When Sirzechs muttered and was about to start sorting through the paperwork again, he remembered something.

"Speaking of which, Grayfia, what happened with that case?"

"Are you referring to the engagement between Rias and Riser of the Phenex family?"

"Yeah."

He asked Grayfia about the engagement of his sister, Rias, to Riser Phenex, one of the most prestigious devil families.

"After all, Rias didn't seem too keen of getting engaged to Riser, and as a result, we decided to settle the matter in a rating game a week later."

"I see… if possible, I want Rias to be free to live her life… so I hope she wins…" Sirzechs muttered.

Meanwhile

Seito University Hospital, CR Headquarters

On this day, Hiiro was working on his computer without taking a lunch break.

"How's it going, Prodigy?"

"Examiner… well, at this rate, I should be finished in a couple of days."

"Is that so? That's great… but I never expected you to be asked to give a lecture and perform an open surgery at the International College of Surgeons at Berlin Medical University in Germany…"

"Hn, it's not a big deal… but there's more to this than being recognized by the world, and I'm going to make it a success." Hiiro said.

"Everything okay, Hiiro?" Haima came to the CR and asked him.

"Father…"

"Oh, director."

"Yeah, everything is okay, father."

"I see, glad to hear. Well, the success of your overseas lecture is also related to your appointment as a professor, so make sure you give it your all, and I'll support you here in Japan as your parent."

"Leave it to me, the surgery is just to cure the patient in front of me as usual, but I've also prepared a very special paper."

"Oho, what's that?"

"It's a paper on resection of giant hepatocellular carcinoma extending into the atrium without open heart surgery." Hiiro told Haima.

"No open heart surgery…? You can do that, Prodigy?"

"Yeah, I mean, I've already done it successfully."

"Seriously!? When!?"

"Examiner, the first day I saw you, four hours before you tricked me, I performed that surgery and it was a success…"

"That day, huh…"

It was the first day that he and Hiiro met, and when he learned that Hiiro had successfully performed such a difficult and delicate surgery, he was once again amazed by the sheer brilliance of this man in front of him, Hiiro Kagami.

"Well, that's how I know you're going to be a great professor… so when are you going to take office?"

"If all goes well, he will be elected in mid-August as a professor of the newly established Special Integrated Strategic Surgery Department at Seito Univeristy."

"Special Integrated Strategic Surgery Department… that's the first time I heard that."

At Kiriya's words, Haima elaborated further.

"I've been proposing for the establishment of a new department within Seito University for a year now. The department will gather experts from various surgery and internal medicine departments from not only the Seito University's main hospital, but also regional and overseas branch hospitals. It's a medical office filled with my dream to provide ideal medical care, accepting patients with diseases that have not been reported and patients who have been diagnosed as incurable at other hospitals, and treating them thoroughly and curing them completely."

"Whoa… sounds like an office befitting for the Prodigy, but then again, it's the Prodigy we're talking about… amazing as always."

Kiriya was once again amazed that he might become a professor at Seito University Hospital, a Japanese national hospital which has the world's top class ability and authority, at the age of 21.

"But don't be too reckless, Hiiro, you are human being, and if you overwork yourself and collapsed when the time comes, you'll be in trouble." He then placed the cocoa he had just made next to Hiiro.

"Excuse me, gentlemen."

"Oh, president!"

"Mr. President!"

"President Zaizen…"

"President Zaizen!"

Everyone greeted Masamune upon entering CR suddenly.

"I heard that you've been invited to the International College of Surgeons. That's great, congratulations."

"I'll take your praise in stride. So, is that what you came here to tell me?"

"No, actually it has to do with the Gear Dual β. Have you had any health problems after using that Gashat?"

"Physical condition… well, I get a little tired after using it, but other than that…"

"I see… no, I'm sorry, that Gashat is so powerful that it puts a strain on the user, and I was worried that you might be injured."

"Is that so… but I'm safe now, so don't worry."

"Okay…" Masamune muttered in relief and turned to face Asuna. "And Poppy, I'm here not only for Hiiro, but for you as well."

"Me… sir?"

"Yes."

Masamune opened the briefcase he was carrying and showed the contents to Asuna.

"This is… Bugvisor II and Tokimeki Crisis Gashat?"

"Yes, with the Ministry of Health's announcement, CR is going to have more work than ever, so we're going to need as much manpower as we can get…"

"…So I could use this…"

"Yes, to become a Kamen Rider."

"I understand, I'll do it!"

Upon Masamune's words, Asuna answered immediately and received the Gashat and Bugvisor.

"I thank you for your courage, and I look forward to your support in the field."

He was about to leave when Masamune added, "Oh, right, I forgot to tell you that I'm going on a business trip to New York in three days, so if you need any help, please contact Lovelica."

He then finally left CR.

"Seriously? Brave and Cronus… two of the strongest Kamen Riders will be away…"

"It can't be helped, Examiner, I'm busy and so is President Zaizen, I know it's hard, but do your best while I'm gone." Hiiro said.

A few hours later

Genm Corporation Headquarters, Basement

"There!"

Currently, in the simulation room in the basement, Snipe was fighting a stained-glass monster that was clearly not a Bugster.

Gashat! Kimewaza! BANG BANG CRITICAL FINISH!

"HAAAAA!"

The moment Snipe's attack hits the monster, it explodes and the words "GAME CLEAR" appeared in the air.

"Is everything going well, Nico-kun?"

"President, the test play has been completed up to No. 9." Snipe said to Masamune over the intercom.

"No. 9… that's ahead of schedule, as expected of Genius Gamer N."

"Of course!"

Nico then untransformed and left the room to head to the president's office.

President's office

"Well, well, well, thank you for being our beta tester, because our plans are coming along nicely." Masamune said as he looked at the 18 Gashats on his desk.

"Thanks, but I hope you haven't forgotten your promise to me."

"I've been working on the second Gashat Gear Dual β for a while now and I'll have it ready for you by summer." Masamune told Nico.

"But still, President…"

"What is it?"

"What is this test all about?" Nico asked as she looked at the colorful Gashats on his desk.

This time Nico was cooperating with a certain top-secret project of the Genm Corporation on the condition that the Gear Dual β would be made for her, but she honestly had no idea what the plan was.

"This plan is to make my dream come true…"

"By 'dream'… you mean the ultimate game?"

"Yes, the ultimate game, the one I've wished for since I was born into this world and gained this knowledge! This is a fundamental part of that plan, and I will tell you more about it in the near future, but for now I want you to follow my instructions and continue the testing." Masamune said.

Two days later

Seito University Hospital, CR Headquarters

"It's done…" Hiiro muttered as he finally finished writing his paper.

"It was a long time, but I managed to finish it in two days…"

When Hiiro looked at his watch, the time was 08:30.

"I think I'll go for a little walk before taking a nap."

He didn't know what he was thinking, but he went out of the CR and went outside.

Outside

"Nice weather… but there are a lot of students coming to school, probably because it's that time of day."

Hiiro was enjoying the walk in the sunny weather, talking to himself.

However…

"Uh, oh, I worked too hard…"

He hadn't sleep at all last night because he had to write his thesis, so he felt light-headed and stood in the middle of the street dizzily.

Then…

"AAAAAAAAAHHH!"

He heard a scream from somewhere.

"What's going on?"

Hiiro ran in the direction of the scream.

When he arrived, he found a missile-shaped Bugster Union trying to attack the students around him.

"Bugster Union!"

Meanwhile, Hiiro tried to quickly transform for an operation.

"Huh!? Watch out!"

The Bugster Union was about to attack a nearby schoolgirl wearing a blue blazer uniform, and Hiiro reflexively ran and pushed her away. While that saved her, but this time, Hiiro almost got hit by the attack.

'Oh no, not at this distance… not again…' He thought for a moment.

.

.

.

.

.

.

.

"HYYEEEEEEEEEEEEAAAAAAAAAAAHHHHHH!"

One of the boys tackled Hiiro and pushed him away, saving him.

"Hey! Are you okay, mister!?"

"You saved me, thanks…"

He halted as he stared in confusion by the boy's appearance. He was dressed like a 1980s delinquent, with short school gakuran, a pompadour, and trousers, which made Hiiro feel more than a little confused by his choice of clothing.

"Kisaragi! You're being so reckless!"

"Gen-chan! Huh!? Is that a rocket!?"

Two students wearing the same blue school uniform as the one worn by the girl Hiiro had pushed came and approached the boy with the gakuran.

"Dunno… but I'm sure it's an enemy! Kengo! Yuki! I'll take care of this! And you get that girl and that man over there out of here as soon as you can!"

"Alright! You two, let's get out of here!"

"Y-yes!"

With that, the girl who had just been attacked left. But Hiiro remained in his place.

"Wait! I don't know what you think you're doing, but it's not as weak as you think it is! Get away from it now!" Hiiro shouted to Kisaragi.

"I'm okay, mister! I don't know what that thing is, but I won't allow it to disturb the peace of this school!"

He then attached a light blue driver to his waist and pressed the four switches on the driver in order from right to left.

3

2

1

"Henshin!" He shouted and pulled the lever on the right side of the driver.

Then Kisaragi's appearance changed to a white-colored warrior, reminiscent of a space suit.

"Kamen Rider!?"

The design and belt were completely different from the CR and Yggdrasill riders he knew, but the figure was unmistakably Kamen Rider.

"UCHUUUUUUU KITAAAAAAAAAAAAA!"

The Kamen Rider shouted, and then introduced himself to the Bugster Union.

"I am Kamen Rider Fourze! Gentaro Kisaragi! I'll be your opponent, let's settle this man-to-man!"

Huh, I always wondered what will happen if Riders like Decade or even Ichigo see the sorry excuse of those foul reincarnators with Rider powers...

And President Masamune! What on earth is the ultimate game you're creating!? Your ambition is off the charts! To be honest, it scares me.