I use Yugioh to battle the multiverse

Back to the day she had been searching for, hoping for, craving—and yet it was just out of reach.

"—Haha…"

Origami sighed inaudibly and let out a long breath.

Then she raised her fist and showed a sharp look as if she had made up her mind again. 

Origami has just finally stepped onto the stage. The crucial moment is just beginning. In Origami's mind, she recalled the scene she saw at that time.

A burning town; parents burned by a light that descended from the sky; the silhouettes of the hateful spirit floating in the air.

She wanted to kill the spirit before her parents were killed, to erase the fact that they had died. She wanted to rewrite the world where such a thing had happened before.

Origami has no fear or hesitation in her heart - only a burning desire for revenge and a brilliant hope.

Origami rubbed the corners of her eyes with her thumbs as if to wipe away the tears that were about to burst out, then turned around and shouted loudly: [Angel of Extinction] - [Heavenly Wings].

At the same time, sparkling light particles emerged from the space around Origami and then gathered on Origami's back, revealing her angel in the form of wings.

Origami vibrated the wings of [Heavenly Wings] and glided in the air at high speed.

The direction they were heading was, of course, south. The direction of in Tengu City, where Origami had lived until five years ago.

Although she has successfully returned to the past, she doesn't know how long she can stay here. In this case, she can only make a quick decision.

It has come to this point. If we don't find the spirit enemy - no, even if we find him, but the time is up before we can defeat him, it would be truly horrible.

Origami awakened the murderous intent that had been harbored in her heart for many years and rushed to the residential area of ​​her destination.

Soon after, a sharp sound rang in her ears. Origami thought it was a space quake alarm for a moment - but it was not. It was a fire alarm and the sirens of fire trucks and ambulances.

At the same time, Origami felt that the scenery in front of her began to shake like the mirage phenomenon produced on a hot day.

The street ahead was burning. The residential area that stretched out in front of her was ablaze with flames as if it had been hit by an air raid. The sound of buildings collapsing, the deafening roar of flames, and the screams of people running for their lives without knowing where to go were mixed with the sirens and alarms. The scene was like hell.

That was the fire that happened five years ago, which Origami also remembered. It was happening right before Origami's eyes.

"…If that's the case──" Origami's past memories were awakened, and she almost fell into a trance for a moment, but she quickly pulled herself together.

This fire was caused by Shido's sister, Kotori Itsuka...

Unable to control the power of the spirit, the huge aftermath of the spiritual power turned the surroundings into a sea of ​​fire.

If that's the case, that spirit should be at the scene right now.

Taking a deep breath, Origami suppressed the indescribable complex emotions in her heart, and began to lower her altitude and search the surrounding area. Sparks flew everywhere, black smoke rose, and the visibility was poor, but this did not affect Origami's determination.

So, not long after, she discovered - there were two figures - no, there was another one lying on the ground behind... Was it Shido?

So, the other two...

Origami focused her attention on the two standing figures---

One is a young girl dressed in a gorgeous feather-like outfit, and the other is... a boy with yellow hair, a lively and handsome appearance, as if he were carved out of jade - a shota?

"Katsu..." The whisper of Origami reveals infinite complexity---

… …

Katsu looked at the young girl in front of him, who was wearing a spiritual outfit and wiping her tears with her hands. He opened his mouth but didn't know what to say. After a while, he sighed and hugged the girl's hot body. How hot was this? It was probably so hot that the skin of a normal person would immediately carbonize if touched...

Kotori was startled at first when she was suddenly hugged. She knew how hot her body was... She tried to push Katsu away in panic, but when she saw that he looked fine, she breath a sigh of relief

Suddenly, she seemed to have been blame and found a relative she could rely on. She hugged Katsu and cried loudly.

"Wuwuwu…Brother Katsu…Brother Katsu…"

Katsu's expression was extremely complicated, but he just hugged Kotori, patted her back gently, and whispered to her in a pure voice: "It's okay... It's okay, I'm here, it's okay now---"

----

When absently looking at the three, she suddenly felt a very strong present in the sky she subconsciously looked over, Then, her breathing stopped instantly, and her beating heart seemed to be about to break out of her chest---

Just because of the figure floating there - it was a figure whose age, gender, and body shape were all unknown.

However, she was indeed there, her presence like an spirit shrouded in noise, just standing there.

That appearance really resembles the existence that gave the Origami spirit its power. Are they the same existence? Or are they just different beings who hide their true identity in the same way?

However, this kind of thing is just a trivial matter for Origami now.

"—I found it…" Origami whispered.

Her consciousness became clear, and the only thing she could see was that spirit──[Phantom]. Having finally found her enemy.

She felt her entire body boil with anger and attack her target.

"--Angel of Extinction!!!" She raised her right hand and called out her weapon.

Then, the [Angel of Extinction] that appeared behind Origami with one side folded in the shape of wings instantly flew independently into the air, with its front end facing downwards.

The next moment, light burst out from the front of the [Angel of Extinction] and attacked the [Phantom] in the distance.

However, at the moment when the light was about to hit him, the [Phantom] began to stir and then disappeared without a trace on the spot.

Seeing that the moment her attack touched the [Phantom], the opponent disappeared, Origami did not get anxious. She quickly raised her head and looked forward.

Then, in the air - at the same height as Origami, the figure of the [Phantom] who had been on the other side just now appeared.

[Phantom] seemed to avoid Origami's attack at that moment and flew here.

"—Huh?"

The [Phantom] said to Origami in a distorted voice: "Someone suddenly attacked me. I thought it was someone else... Are you... a spirit?"

Because of the noise that enveloped his body, it was impossible to discern his subtle expression, but she could vaguely sense that the [Phantom] was showing a surprised look. She looked at Origami with interest and continued:

"And that angel──is it the Angel of Extermination? I still have that Sephira Crystal."

The [Phantom] tilted his head and said. From [phantom]'s words, it can be inferred that the spirit in front of him is indeed the same existence as "that" who gave Origami spiritual power.

However, Origami no longer felt disgusted by the power she gained from her enemy. Instead, she felt a sense of superiority over the mistake of the [Phantom] being attacked by the power she gave to it.

Of course, Origami had no intention of answering His question. Instead, she shouted "Ahhhhhhhh!!!" and pointed her right hand forward.

Then, the front end of the Angel of Extinction coordinated with this movement and moved forward, releasing light towards the [Phantom].

[Phantom] turned his body just like before, dodging at an angle as if he had barely avoided the attack at the critical moment.

"...This is indeed the Angel of Extinction - that's right. In this case, the only thing we can think of is...using the power of Zafkiel to go back in time, right?"

[Phantom] muttered to himself. However, Origami now had no intention of thinking about such things.

"[Sword of Light]…!"

— Origami opened her hands wide, and the wing-shaped [Angel of Extinction] followed her movements, breaking into pieces and scattering in the air, with the front end facing the phantom.

"—Hahahhh!" Origami shouted, and all the [Angels of Extinction] emitted light from their front ends towards the [Phantom].

The phantom continued to move just like before, dodging the attacks one by one as if gliding through the air.

Origami chased the [Phantom] that was flying in the air in a complex trajectory, and released light again and again. The [Phantom] dodged all attacks and gradually shortened the distance it moved.

"Alas...it seems like you and my future self have some deep hatred."

The Phantom made an impatient sound while dodging the light that was freely moving in the air.

"...But, I'm sorry, I can't let you kill me here. Because I have a wish to fulfill---"

However, this should have been a beautiful sentence, but when Origami heard it, a hideous expression instantly appeared on his face.

"You said - a wish?" As if responding to Origami's words, the [Angel of Extinction] instantly flew out, bursting out with terrifying power and shooting towards the [Phantom]---!

"You killed my father... and mother, what wish do you still want...? You are kidding, you are kidding, you are kidding...! I won't give you time to pray or make a wish. You will die without accomplishing anything. Disappear without leaving a trace. I want your empty heart to disappear from this world with only regrets──!"

However, after hearing what Origami said, [Phantom] tilted his head in confusion.

"Your father and mother...? What are you talking about? I have no impression. Sorry, did you recognize the wrong person? "

Hearing the response from the [Phantom], Origami held her breath, her expression extremely gloomy, an expression that made her want to tear the figure in front of her to pieces---

That being said, it was only natural for [Phantom] to answer like that. Because at this stage, he hadn't killed Origami's parents yet. It was also true that he would have no way to answer if he was asked about a mistake he hadn't made.

However, the response of the Phantom revealed a pure fact. He replied, "I have no impression."

In other words, if Phantom wasn't playing dumb, he would have killed Origami's parents in a few minutes without even knowing their names or existence.

This action was not planned, had no reason──no...reason. To this spirit, the fact that Origami's parents were killed was not based on some ideology and purpose, but was just a whim──just like stepping on an ant on the roadside, insignificant.

Origami felt that her mind, which was already crazy with anger, was now even more confused.

Anger was raging all over her body, threatening to burst through her skin. Even Origami no longer knew how to express this feeling. Anger, murderous intent, hatred. These words, even Issei, could not express the frenzied emotions that filled Origami's heart.

However, the only thing that is certain is that Origami will never allow [Phantoms] to exist in this world.

"Ahhhhhhhhhhhh!!!!!"

As Origami roared, all the Angels of Extinction scattered in the air fired beams at the same time, attacking the phantom.

However, Phantom still dodged all the attacks with wonderful moves.

However, this time──this was all within Origami's calculations. In the few minutes of the offensive and defensive battle, Origami saw through the habit of [Phantom] dodging attacks and deliberately fired a beam that made it easy for him to dodge.

That's right. [Phantom] A safe place where you can only move to a certain place; a place where you can't hide from all light when you are in danger.

On the other hand, it can also form a cage of light that surrounds him. It can only maintain the shape of a cage for a short time. 

However, that is enough."—Hah!" While the trail of light was still in the air, Origami gathered the [Angels of Extinction] and transformed them into a crown she fired a huge beam of light toward her.

[Phantom] suddenly she faze out of existence and her attack fails to hit him. 

After venting violently, Origami looked at [phantom] that suddenly disappeared from mid-air, with a hint of resentment in her eyes, but then she seemed to remember something and lowered her head to look in a certain direction---

That was Origami's past residence ---

[Phantom] was repelled by me... Then her parents should be...

When Origami was thinking this, her eyes suddenly froze...

She saw a girl, a girl sitting on the ground---

Seeing her appearance, Origami suddenly felt a sense of weightlessness in her body, as if the world was turning upside down.

She was a girl in the upper grades of elementary school, with shoulder-length hair pinned up with a hairpin. Although she looked cute, her face now looked desolate and helpless because of the black smoke and dazed expression.

That's right. It was undoubtedly the Origami from five years ago.

Boom boom, boom boom. Her heart is beating violently and her head feels like it's being stabbed in with a red-hot iron rod, and then stirred violently in circles.

At this moment, there is an urge to destroy all the senses and cut off all information from the outside world.

However, elementary student Origami saw it and moved her eyes half-consciously.——In front of the collapsed elementary school student Origami's sight.

"Ah...ah..." Five years ago, in front of Origami, there was a trace of destruction that was larger than the surrounding area. The road was completely destroyed. No matter how strong the fire was, the flames could not cause such a disaster.

Rather than the destruction caused by flames, it was more like the traces of damage caused by light pouring down from the sky.

Then, in the center of that trail of destruction... scattered were countless pieces of flesh and bone fragments that were probably humanoid just seconds ago.

That's right. It happened to be right below where Origami had just fired the beam at the Phantom.

"Ah, ah, ah, ah, ah, ah…" Her vision shook, her throat was sticky, and her fingertips trembled.

——The scene she had seen in the past reappeared vividly. Five years ago, Origami returned to the residential area surrounded by flames and met her parents in front of her house.

Both of her parents were safe and sound. Origami felt happy and relieved.

However, the next moment. The light that fell from the sky seemed to drown them all, but fortunately, a white meteor unexpectedly saved them---Origami breathed a sigh of relief and looked into the distance, seeing the small white figure. While being surprised, she also imprinted his appearance in her heart---but when she saw her flying into the sky and confronting another figure, she also prayed for the figure who saved her family---

But when she looked back at her parents, she was in despair -- because her parents were pierced through by several rays of light at the same time...

Whenever she close her eyes, she can still recall the nightmare-like scene.

…Yes, Origami was looking up at the sky. Looking for the direction of the light. Looking for the figure of the murderer who killed her parents.

Five years ago, Origami, who didn't know about the existence of spirits, described the figure like this: an angel.

At this moment, Origami from five years ago on the ground raised her head and looked in Origami's direction. Origami followed her line of sight and moved her eyes downwards with trembling hands.

Then, she looked at her whole body. Covering her slender body, the pure white spirit suit radiated a faint glow. Countless "feathers" seemed to be flying in the air, surrounding the spirit suit.

People who know nothing about spirits would definitely think it was an angel when they saw that appearance.

"Ah, ah, ah, ahhhhhhhhhhhhhhhhh!" Her whole body was shaking.

Origami held her head and twisted her body.

She felt herself fading away, disappearing. No, maybe that was close to her wish.

The desire to immediately eliminate her own disgust filled her mind.

The despair of not being able to allow myself to exist filled the gaps in her heart.

At this moment, the tiny Origami on the ground showed an expression of despair and anger, and spoke.

The sound was drowned out by the sirens and the sounds of buildings collapsing all around.

However, there was no need to vibrate the eardrum; the sound was clearly transmitted to Origami's mind.

──It is…you…who…broke my father and mother…I can never…forgive…! I will kill you…! I──will definitely kill you…!

That was... Origami repeated the curse countless times in her mind. Origami understood. At this moment, she truly understood the truth of everything.

"I... killed my parents with my own hands...?"

The moment I realized this fact... Origami the colors of the landscape expanding across her field of vision were

The world had no color - no, it was her own heart that had no color.