I use Yugioh to battle the multiverse

"… …"

… …

While Shidou was struggling, his body suddenly became heavy and he couldn't move.

"This is...what...what's going on...!" Shidou was shocked and angry---

"Fourth Bullet!" A pleasant and magnetic voice fell into Shidou's ears, and then---"Bang!"

The next moment, Shidou was surprised to find that his body had been repaired, and his injuries disappeared---

The street lights where Shidou was standing were broken, so the lights kept flickering, but──there was always a shadow hovering on the ground.

Then, when Shidou noticed this abnormality, the shadow under his feet twisted like a living creature---

Then, a black and red dreamlike voice came out from it---

"Kurumi-sam!?" Shidou was startled, and then looked in the direction of Katsu, but there was no sign of Katsu there? So he immediately retracted his gaze and looked down at his feet---

Now, Shidou was a little panicked.

"What... are you going to do...? At a time like this──" Shidou said with a painful expression.

Shidou had seen the shadow that was now spreading under his feet.

City of Devouring of Time. The barrier that Kurumi uses to absorb the time of humans.

However... the effectiveness is far from what Shidou has seen before. In the past, when Shidou had Tohka's power sealed in his body, he felt tired, but at least he could move within the barrier.

But this time it was obviously different. The strong pressure that seemed to uproot Shidou's life made Shidou unable to move easily and stuck to the ground.

Hearing what Shidou said, Kurumi smiled elegantly.

"Oh, that's a really strange question. Shidou-san, have you forgotten my purpose?"

Shidou held his breath. Kurumi's goal was to "eat" him and obtain the spiritual power sealed in his body. Of course, he couldn't forget it.

Kurumi's smile became even wider.

"You mean... at this time? Haha, of course it has to be at this time, right? All the spirits are busy, and Katsu-kun is not here - how can we miss such a great opportunity?"

Perhaps it was just as Kurumi said. She was neither their companion nor DEM. No matter how anxious Shidou was, it was none of her business. It was perfectly natural for her to want to take advantage of the chaos to achieve her goal.

But...Shidou can't let himself be held back now.

"Kurumi...! Please! Don't hinder me... For Katsu's sake..." After Shidou shouted loudly, Kurumi seemed to find his reaction very interesting and shrugged.

"Ah---you can't believe you said that~"

"I... I have to save Kotori and the others! I have to save Katsu and the others! And - I have to get to Tobiichi-san no matter what! Otherwise, she will -"

"Kurumi - stop teasing him, otherwise Shidou is about to cry." Katsu's voice came from the shadow, but only Kurumi could hear it.

"Hehehe, I just think it's interesting. However, since Katsu-kun said so, then---" Kurumi said this, and Shidou felt that it was a bit confusing---

But after she finished speaking, Kurumi took a light step backwards and opened her arms.

Then, as if in coordination with her movements, the two guns flew into her hands from the shadows that spread to her feet.

One is a rifle with a long barrel, and the other is a short gun. Both are old-fashioned guns with fine workmanship like antiques.

Then, a huge clock face emerged from the shadows.

"Emperor Zafkiel!"

The angel that controls time that Kurumi possesses. "Alright, alright, Zafkiel. Come out."

Then, as if responding to what Kurumi said, Zafkiel began to move, and shadows seeped out from the numbers on the dial and retracted into the muzzle of the gun.

Then, Kurumi raised the corners of her mouth and smiled coldly, pointing the two guns at Shidou.

"...What!" Seeing her unexpected action, Shidou couldn't help but widen his eyes. Kurumi's purpose should be to seize the spiritual power from Shidou. Shidou couldn't understand Kurumi's action for a moment and was speechless.

However, there is no time to relax. Although I don't know the effect of the bullets in Kurumi's gun, it is not difficult to imagine that it will definitely be disadvantageous to Shidou.

Shidou gritted his teeth and used all his strength to try to crawl on the ground to escape.

"Kotori, Tobiichi-san, and everyone else..." He couldn't die in a place like this. He had to save everyone...

However, as if mocking Shidou's determination, Kurumi's voice came:

"The gap between you and Katsu-kun is really huge~" At the same time, Kurumi pulled the trigger without hesitation. The gun bounced up and fired a bullet.

The bullets gathered from the shadows drew a black trajectory in space and shot into the back of Shidou who was trying to escape.

"Ah...!" A painful expression appeared on Shidou's face──but he immediately realized that something was wrong and frowned.

"What!? This is…?"

Shidou was puzzled and looked back at Kurumi. At that moment, Kurumi smiled charmingly and put her finger on the trigger of another gun.

"hehe."

Kurumi sneered and ignored Shidou's question. Instead, she used all her strength to activate the [City of Devouring of Time] under her feet, absorbing the spiritual power in Shidou's body into the Zafkielwithout any hesitation, and then - she pulled the trigger again.

The black bullet shot into Shidou's forehead. Like the previous bullet, this bullet did not cause any pain.

But── "Hmm...ah...?" The moment the bullet hit his head, Shidou felt a strange sensation, as if his entire body had turned into a gelatinous substance and was being pushed into a blender, being blended into mud.

Shidou lost his sense of balance and could not tell which was up and which was down. Then, even his consciousness seemed to be gradually shattered, and all his senses gradually became weak - and he fainted.

——The consciousness that had fallen into darkness slowly returned. At this moment, the first thing Shidou felt was heat. However, it was not as hot as the flames of Kotori, but the feeling of being slowly roasted by a flame of a lower temperature from a distance.

After a few seconds, Shidou slightly opened his eyelids.

But the moment he opened his eyelids, dazzling light leaped into his entire field of vision, making his eyes, which were used to darkness, unable to bear it for a moment, and he had to raise his hand to block it---

"What...what's going on?" Shidou frowned, confused.

For a moment, Shidou thought that he was shot by Kurumi, lost consciousness, and was taken in by a hospital or Ratatoskr's underground facility, lying on the operating table.

However, he soon discovered that his imagination was wrong.

Because the eardrum receives the chirping sound of insects.

 Shidou twisted his neck, this time put his palm in front of his eyes, and then opened his eyelids. Then, he found himself lying outside the house - in the middle of the road.

Then the sun shone brilliantly in the sky, illuminating everything around.

"This...what on earth is..." Shidou sat up and looked around.

He thought that while he was unconscious, time had turned from night to day, but──that was not the case.

He has now noticed that the world he is in is clearly not normal.

"Why... the streets are not destroyed..." That's right. The streets that should have been destroyed by Origami were restored to their original state.

Shidou frowned in confusion and moved his eyes to observe the surroundings.

The place where Shidou was lying was in an alley with few pedestrians. However, the sunshine was not bad, and the sun was pouring into every corner of the road, even... a little too hot. It was just like midsummer.

At this moment, Shidou recalled what he had just discovered. That's right. Various cicada sounds were heard all around.

Moreover, the trees on the roadside in the distance are lush and green, and the pedestrians walking on the road are all wearing short sleeves.

"…What's going on?" Shidou pulled his sweaty clothes to fan his chest, showing a confused expression.

It's more than just like...it's actually a real summer scene.

——This is so strange. Something is obviously wrong. Shidou placed his hand on his forehead and thought about it.

If Shidou remembered correctly, it was November now. The maple leaves should have fallen and winter was approaching. However, the scenery that expanded in Shidou's vision was definitely midsummer.

"No... Let's not worry about this for now..." Shidou shook his head vigorously.

This is indeed an important issue that cannot be ignored. However, there are some things that must be confirmed first.

"Tohka! Katsu!" Shidou staggered to his feet and shouted.

However, there was no response---

… …

On a high-rise building that was rarely intact, Katsu knelt on one knee, supporting himself with one hand and holding the hand of the black and red figure next to him with the other.

He coughed a few times due to the itchy throat, wiped the blood from the corner of his mouth, and then in his mind, he called out to the mysterious connection grafted from Kurumi's mind---

"Shidou--"

… …

At this moment, Shidou was pounding the ground anxiously. Firstly, he was venting his resentment, and secondly, he was trying to confirm...whether this was a dream.

However, the moment my fist touched the ground, pain exploded in my brain.

"It's not a dream…"

Shidou's eyes revealed confusion---

However, at this moment, a familiar voice suddenly came from his mind---

"Shidou..."

Shidou was stunned for a moment, and then he shouted in surprise and anxiety like a drowning man grabbing a life-saving straw--

"Katsu?! This voice, is it Katsu? Where are you? No... Where am I?"

"Ah, it's me. Now, Shidou, listen to me carefully."

"You are in Tengu City now, that's right, but the time was five years ago."

"Huh?! What...what did you say?!" Hearing Katsu's "shocking" words, Shidou suddenly widened his eyes and made a sound in disbelief.

"Yes...you heard it right. The time and space you are in now is Tengu five years ago." Katsu's voice was weak and tired. It was obvious that the side effects of equipping his card were still continuing to torment him.

"… …" Shidou suddenly fell silent. Katsu would not lie to him most likely.

"Huh---this... is there a purpose?" Shidou learned his lesson this time. With a little thought, he knew that he would not be sent to five years ago for no reason---

"Ah... That's right. It was Kurumi's Twelve Bullet that sent you back five years ago. The reason I'm in contact with you now is because of the Ninth Bullet. Your current mission is to find a way to stop Origami in Tengu City five years ago."

"Stop Origami…? Wait… wait a minute, I don't understand what you mean. It's true that Origami is here too, but she was still an elementary school student five years ago, right? What should I do—"

"No, you should have seen Origami who has turned into a spirit. She should have used Kurumi's [Twelve Bullets] to go back five years."

"What...!" Shidou couldn't help but let out a high-pitched exclamation: "Origami... will come to this era!"

"Yes, Kurumi has extended the time you went back a little. Origami on your side probably hasn't gone back to five years ago yet, but it should be soon..."

"What's going on? Why did Origami go back five years ago..."

"Kurumi told me...she wanted to avenge her parents. To be more precise──she wanted to defeat the enemy before her parents were killed."

Listening to the information revealed in Katsu's words, Shidou felt a pang of pain in his heart.

The information that was originally scattered in my mind gradually took shape.

"Katsu, you mean that Origami... came back here to defeat the [Phantom]...?"

Shidou recalled another spirit who was at the fire scene five years ago, and murmured.

"But if that's the case, why did Origami reverse herself when she returned to her original era? What on earth happened to her in this era?!"

"It complicated cough cough cough! Anyway, your mission now is to find out the truth and stop Origami's reversal. "

"Ah---I understand, but Katsu, your body..."

"I'm fine... cough cough cough.."

Actually, Shidou wanted to ask why it was him, why he was sent to five years ago---Normally, it should be Katsu who came here personally... But when he heard Katsu's violent coughing, he couldn't ask---

Helpless, he asked again: "What about everyone else? How is the situation?"

"Everyone...as long as you succeed in changing history, everyone will be fine."

Hearing this, Shidou's pupils shrank for a moment, and then he placed his hand on his chest to suppress his heart which had been beating violently since a while ago.

At this moment, Shidou felt a huge amount of pressure, as if everyone's fate was on his shoulders - if he successfully changed history, then everyone would be fine. So does the meaning mean that if he fails, everyone... will be in trouble?

"That kind of thing... can I do it? I've heard that history has the so-called correction power..." Shidou said with difficulty.

He didn't know much about science fiction, but he had heard of this theory before when watching movies about time travel.

To put it simply, even if you use a time machine to go back to the past and do something major to change history, the changed parts will still happen again as if they were corrected, forming a world close to the original history.

"Hehe...that's just a theory. Has the person who proposed this theory ever actually traveled through time and space to verify his idea?" Katsu's voice was filled with disdain beside he himself has once change the past in a different world. 

He doesn't know if this world's rule is different but they have to at least try.

"ah...That's true. So, Katsu, I can do it, right?"

"Well, I believe in you - you have to believe in yourself, too."

Katsu's words echoed in Shidou's ears. He swallowed, took a few deep breaths, and then his eyes gradually became firm - to find out Origami's movements five years ago, find out the reason for her reversal and resolve the situation. According to Katsu's words - it seems that this is the only way at the moment - there is only this one way to save everyone, save Origami!