"Junior Shiraishi, you..."
Standing behind Shiraishi Shin, Kasumigaoka Utaha's beautiful eyes were filled with shock.
Hadn't it been said that Shiraishi Shin was Kamen Rider Delta?
But wasn't this Kamen Rider Cronus?
From the moment that blurry light curtain first appeared until now, Kasumigaoka Utaha felt as if she were losing her mind.
After all, what she was experiencing now was far too sci-fi.
She had moved from the school rooftop to this unfamiliar stadium without feeling a thing, and then a white Kamen Rider appeared opposite them.
According to the broadcast, Shiraishi Shin was Kamen Rider Delta, yet Shiraishi Shin had indeed undergone Henshin into Kamen Rider Cronus.
For an ordinary person like Kasumigaoka Utaha, her mind was in a complete mess.
"Senior Kasumigaoka, I didn't expect something so ridiculous to happen either, but let's talk about it later."
Shiraishi Shin glanced back at Kasumigaoka Utaha before looking forward.
At this moment, the opposing Kamen Rider Rei could no longer contain himself and charged forward.
Because he had never seen Kamen Rider Delta, he mistook Cronus for Delta.
As long as he defeated his opponent, his own world would not disappear.
This was also what he had said at the beginning:
"If you don't fight, you cannot survive."
As Kamen Rider Rei charged, the chains wrapped around his wrists were released, replaced by massive claws sealed by chains appearing on his wrists.
These claws possessed terrifying destructive power.
[Kimewaza!]
Watching the charging Kamen Rider Rei, Shiraishi Shin removed the Driver from his waist, held it in his right hand with the geared end facing outward, and then pressed the B Button on the Driver.
[Critical Sacrifice!]
As the sound effect played, the saw teeth on the Driver condensed green energy before slashing downward.
Suddenly, a two-meter-high green Eight-Part Halo pressed against the ground and rolled directly toward Kamen Rider Rei.
Its speed was so great that Kamen Rider Rei, in the middle of his charge, had no time to react and was directly blown apart by the green halo that crushed over him.
Boom!!
"Argh!!"
With a scream, nothing remained after Kamen Rider Rei exploded.
Natsumi Hikari said in disbelief,
"A... a one-shot kill?"
In the previous five Rider battles, who hadn't struggled to defeat their opponent?
Even when Kadoya Tsukasa faced the Showa Riders, he was initially at a complete disadvantage, only winning in the end with a powerful Rider Kick.
Yet this mysterious Rider had finished the fight against Kamen Rider Rei in a single move.
His strength was truly terrifying.
Onodera Yusuke's eyes widened as he said,
"Hey, hey, what's this guy's deal? Tsukasa, you're the one who brought him here with the Aurora Curtain. Don't tell me you don't know who he is?"
"I was only thinking of transporting Kamen Rider Delta here; I didn't expect to send the wrong person."
Kadoya Tsukasa was also quite confused.
It was indeed he who had transported them using the Aurora Curtain, but he never thought there would be a mistake.
After dealing with Kamen Rider Rei in one move, Shiraishi Shin put the Driver back on his waist.
He then looked toward the people in the spectator stands, turned, and walked a few steps to Kasumigaoka Utaha's side.
Grabbing her by the waist, he transformed into green data and instantly moved from the stadium floor to the spectator stands.
"Senior Kasumigaoka, stay here and don't move. I'm going to handle some things."
"Okay, be careful."
It went without saying that Kasumigaoka Utaha knew their appearance here must have something to do with those people ahead.
Seeing the unfriendly, unfamiliar black-and-green Rider, Onodera Yusuke placed his hands in front of his waist, revealing his Kuuga Belt, and stepped forward to ask,
"Who exactly are you?"
After stopping in front of the group, Shiraishi Shin said,
"You're the ones who brought me here, and yet you're asking me who I am?"
Kadoya Tsukasa spoke up,
"I was transporting Kamen Rider Delta, not an unfamiliar Rider like you.
"Perhaps there was a mistake, so I'll send you back now."
Shiraishi Shin chuckled and said,
"You might not know me, but I know you.
"Kamen Rider Kuuga's Onodera Yusuke.
"Natsumi Hikari.
"Nobuhiko Tsukikage—who is disguised as a butler but is actually the Great Shocker's behind-the-scenes boss.
"And the Destroyer of Worlds, Kamen Rider Kadoya Tsukasa.
"Your memory was modified by Nobuhiko Tsukikage to make you believe you are the leader of Great Shocker, leading you to start the Rider War to eliminate Kamen Riders and achieve the goal of invading other parallel worlds afterward."
"What!"
Onodera Yusuke and the others were instantly stunned.
This person knew all their information upon their first meeting.
And Mr. Tsukikage wasn't a butler, but the Great Shocker's behind-the-scenes boss?
And Kadoya Tsukasa's memory was modified to make him believe he was the Great Shocker leader out to exterminate Kamen Riders and then invade various parallel worlds?
Kadoya Tsukasa stood frozen in place and said,
"My memory is... fake?"
Natsumi Hikari glanced at Nobuhiko Tsukikage and subconsciously pulled away.
Then she hurriedly asked,
"Who exactly are you? Do you have any proof for what you just said?"
"Believe it or not, it's up to you."
"Nobuhiko Tsukikage, call out the Great Shocker Organization."
Shiraishi Shin wasn't afraid even when facing the entire Great Shocker Organization.
Instead, he felt he couldn't exactly go back empty-handed from this trip.
His own world also had a Shocker Organization, but he didn't know where it was.
And now, right before him, was an entire group of Great Shocker Monsters.
These were all here to give him points.
How could he be embarrassed to go back without taking them?
Facing everyone's questioning gazes, Nobuhiko Tsukikage's expression began to look a bit unnatural, but he still stubbornly said,
"What Great Shocker? I don't understand what you're talking about."
His goal hadn't been fully achieved yet, so he naturally didn't want to expose his identity so soon.
Yet this person saw through his identity and was so certain.
Who exactly was this guy?
Shiraishi Shin sneered.
"You don't understand?
"Then when I point out the Great Shocker Castle you've hidden beneath this stadium, will you still be able to keep your cool?"
"Who on earth are you!"
At this moment, Nobuhiko Tsukikage was truly startled.
This unfamiliar Rider before him was not only extremely powerful but also knew his identity and even discerned the Great Shocker Castle underground, as if everything he controlled had been stripped bare before this person.
Such an unknown variable, who even dared to speak out in public, clearly had absolute confidence.
He couldn't help but be shocked, and a trace of panic toward the unknown arose in his heart.
Hearing Nobuhiko Tsukikage's changed tone, Natsumi Hikari and Onodera Yusuke sensed something was wrong and immediately pulled further away.
Meanwhile, Kadoya Tsukasa looked at the butler who was supposed to be loyal in his memory and questioned,
"Tsukikage, is what he said true?"
Nobuhiko Tsukikage immediately denied it.
"How could that be?
"He's trying to drive a wedge between us.
"It's absolutely not as he says."
Kadoya Tsukasa didn't speak.
But a seed of doubt had already been planted, and it wouldn't be easy to remove.
Moreover, Kadoya Tsukasa wasn't stupid.
His desire to determine the strongest Rider was originally meant to save the world.
Otherwise, according to what Tsukikage had said, if the strongest Rider wasn't decided, all worlds would be destroyed.
But now...
He doubted the truth of that entire story.