Kamen Rider: Prince of Shadow

Time Vent——!

A familiar reminder sounded, and everything around stopped instantly at this moment. Then, the whole world shattered like glass.

Time was flowing backwards quickly. Nobuhiko lifted the transformation, and the blue light bloomed from his whole body. He carefully felt the ability of this card. As a user, he clearly felt the power of this card for the first time.

Everything was going backwards, as if following some rules.

Time Vent is not a special ability of the Golden Phoenix, but a card made by Kanzaki Shirou himself. It can be said that this is an ability exclusive to the Odin card box.

The source of this ability is undoubtedly from the mirror world.

What is the mirror world?

With this question, Nobuhiko looked all the way, time was continuously going backwards, and the originally collapsed mirror world was quickly repaired. Then, he saw that the knights who were fighting the mirror beasts in the collapsed mirror world - Shinji, Lian, Kitaoka Shuichi and others seemed to have pressed the rewind button. This was not over yet, time continued to go backwards, and the dead knights such as Kamen Rider Haiyao and Kamen Rider Blade also appeared one after another.

The time of going backwards was getting faster and faster, and the surrounding buildings also changed. Finally, it came to the time when Kanzaki Yui was seven years old.

This is the origin of everything.

Nobuhiko looked at the empty room, turned around and disappeared on the spot.

At Kanzaki's house, Kanzaki Shiro, who looked like a child, looked at Yui's body numbly. He knew that next, Kanzaki Yui in the mirror world would appear and merge with the real Kanzaki Yui, and then start a series of events later.

He has experienced this kind of reincarnation many times, and he even tried to change the fate of Kanzaki Yui's death. However, no matter what, Kanzaki Yui in the real world will die, and Kanzaki Yui in the mirror world will appear and merge with it, just like fate.

So, Kanzaki Shiro will make up his mind to return to the future and change everything.

However, now, he has no chance.

Kanzaki Shiro quietly looked at the mirror, waiting for the arrival of the mirror world Yui, but at this moment, a green light suddenly appeared in front of him-it was Nobuhiko. He was still not affected by the arrival of time. He looked at Kanzaki Shiro, who looked ashen, and then looked at Kanzaki Yui, who was lying on the ground next to him and had lost her voice.

"Is your purpose to let me witness Yui's death again? Now it's as you wish."

Kanzaki Shiro looked up at Nobuhiko and questioned Nobuhiko.

Nobuhiko did not answer, but continued to look at the floor-to-ceiling mirror in front of him. Not long after, a girl who looked exactly like Kanzaki Yui appeared in the mirror and then walked out slowly.

"Do you want me to be one with her?"

The mirror world's Yui said slowly:

"But it will disappear in the future, after the twentieth birthday."

Kanzaki Shirou had heard these familiar words countless times, but this time, there was an unexpected turn. Nobuhiko turned his head to look at Yui on the ground, raised his hand suddenly, and the blue light of the Emperor Stone flashed, and the majestic life energy was injected into Yui's body.

Swish——!

In the blue light, Yui on the ground slowly opened her eyes and looked around in confusion.

"Yui!"

Kanzaki Shirou was stunned when he saw this scene, and then he rushed to Yui, rolling and crawling, hugging his sister tightly with both hands. The warmth coming from the other's body made Kanzaki Shirou cry with joy.

At this moment, Kanzaki Shirou seemed to have thought of something, and suddenly turned his head to look at Nobuhiko;

"Did you want to do this from the beginning?"

"Well, you should be thankful. If it weren't for this card that could save everything, I would have killed you without hesitation."

Nobuhiko raised the Time Advent Card in his hand and said.

This is indeed a card that saved everything. Without it, the countless mirror beasts born after the collapse of the mirror world alone would have caused countless killings.

"From now on, live the rest of your life as an ordinary person. This should be the best gift for you."

"Thank you, thank you..."

"I'm not doing this for you. In addition to my own desires, the rest is for Shiroto Shinji."

"Huh?"

"For someone with lofty ideals, I don't want him to suffer more hardships, that's all."

After that, Nobuhiko looked at Kanzaki Yui who had returned to the mirror world, suddenly raised the card box, and walked straight into the mirror world after turning into the Wolf King.

——

"Who are you?"

The mirror world's Kanzaki Yui stood in a room exactly like Kanzaki Shiro's and asked Nobuhiko.

"That's what I want to ask you, too."

Nobuhiko looked at the delicate doll-like girl in front of him and asked:

"My name is Akizuki Nobuhiko, can you tell me? What is the mirror world all about? Who are you?"

"I am Kanzaki Yui."

"Hmm?"

"Not just me, this world was born because of Kanzaki Yui."

Mirror Yui said:

"That woman's powerful will opened the passage to this world, and it is because of the nature of the mirror that I exist."

"It looks the same, but is it completely opposite?"

Nobuhiko understood that Kanzaki Shiro and Kanzaki Yui were both humans with superpowers in a sense. Because of their semi-imprisonment experience in childhood, the lonely Kanzaki Yui communicated with the passage to the mirror world.

"Does the power of this card also come from this?"

"Well, that is the power of the world itself..."

Although it was not stated explicitly, Nobuhiko already knew that the advent of time should include the concept of time, perhaps it was the power extracted by Kanzaki Shirou after he became the master of the mirror world.

"Interesting, let me see."

Nobuhiko's left hand suddenly burst into a dazzling brilliance and pressed on the ground. Then, the power of the Emperor Stone spread around with Nobuhiko as the center, and instantly spread to the entire mirror world.

At this moment, everything in the mirror world appeared in Nobuhiko's mind.

He finally understood that the so-called mirror world is actually a newborn parallel universe, but relying on Kanzaki Yui's superpowers, a channel to communicate with this world was opened. Through this channel, the mirror world became a different space attached to the real world. Because of this, Kanzaki Yui's power became the support for maintaining the mirror world. In a sense, it is true that the mirror world was born because of Kanzaki Yui.

"So, as long as Kanzaki Yui is still alive, the mirror world will not collapse?"

"That's right."

"I know, let's keep it like this."

Knowing everything, Nobuhiko looked at the time card in his hand and murmured. Suddenly, he seemed to think of something and took out the contract card belonging to the Golden Phoenix from the card box.

"Interesting, because I was not affected either? This trip was a good harvest."

Nobuhiko smiled slightly and put the card into the card box. Finally, he looked up at Kanzaki Yui in the mirror world:

"Next, will you live in this world?"

"I have always been like this."

"Really? That's good. Everyone should live well. Goodbye."

Nobuhiko waved his hand and walked towards the exit from when he came, while Kanzaki Yui in the mirror world turned and walked out of the door:

"Dad, Mom..."

ps: The origin of the mirror world is my secondary creation, yysy, the more I think about the setting of the knight, the more I get excited. Sure enough, Kamen Rider should not be taken so seriously.