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Chapter 1 - Domain Expansion.

Jolting in shock. My eyes shoot open as I take in my surroundings, and pain shoots through my body agonizing at my movement.

Groaning in agony. A rush of memories floods my brain. Memories from 2 different lives. One as kokichi and another as someone unknown.

Visions of the future enter my mind. Knowledge of my death. Defeat at the hands of Mahito a cursed spirit. With 'Geto' watching.

On cue. I hear the sound of two people walking. Looking up weakly, I stare at a blue-haired cursed spirit with a human-like appearance approaching steadily. Trailing slightly behind is a tall, dark-haired man with a small smile on his face.

"I assume you two are here to complete the binding vow?" I question seriously. In another life, after this altercation, I die. Not this time.

Smirking as the duo nods. I grin weakly.

"You took forever. I was beginning to think you forgot about me." 'Getos' Smile widens.

"We wouldn't dare." He says as the cursed spirit Mahito moves forward.

"Yeesh, it smells like mold!" The cursed spirit exaggerates disgust as I glare.

"He's our enemy. Why don't we just kill him already, Geto?" The spirit asks Geto, who shakes his head.

"Not yet, mahito. The killing comes after you heal him. We made a binding vow to heal him with your idle transfiguration. If you kill him, the consequences will be dire." Geto explains as I mock the spirit.

"You can't kill me yet dumbass." I taunt. My memories of Mahito show he's always been childish. Basic insults should work on him

"Tch. Don't blame me if I turn you into a caterpillar." Mahito scowls as I snort. The spirit moves forward and places his hand atop my head.

"You better be thankful... you're even lower than scum." Soon, my body begins to heal. My very soul changes shape. I feel my body lose its weakness as I stand.

Stretching as Mahito backs away. I flex my muscles and pulse some cursed energy. This is good.

My admiration of my new health is interrupted by the childish curse.

"Boooring! How about you show some enthusiasm?" The spirit questions as I smirk viciously.

"The enthusiasm comes when I exorcise you," Mahito smirks back at me as his hand glows purple with cursed energy.

With a thought, numerous puppets surround me as I begin to get used to my cursed energy again. My life as someone from the 'real world is dominant over my life as Kokichi.

"Let's begin!" Mahito yells as my puppets move. I'm well aware they can't damage him. Well, at least that would be the case.

If I couldn't perceive the soul that is...

When my two memories merged. So did my two souls. This is similar to the way that Yuji and Sukuna work minus the vessel thing. I've gained a subconscious understanding of the soul. I can hurt Mahito.

My puppets move. They attack Mahito much better than the original as I go through memories. I memorize his fighting style. Mahito leans on his transfiguration more so than anything else.

Going into Ultimate Mechamaru, I feel mahito after minor difficulties Destroy my puppets. Grinning, I shoot out from under the spirit.

[Ultimate Mechamaru: Mode Absolute!!]

This robot is temporary. I'd honestly prefer to fight mahito by myself with just my puppets, but this body lacks actual combat experience.

Contacting Gojo to come kill these guys is not an option as 'Geto' placed a curtain around the area. Blocking signal.

'Geto' is much more of a threat than Mahito. But I doubt he interferes as he believes Mahito will come out on top

Formulating a plan immediately after I get ready. My robot roars as I punch toward Mahito. Who laughs and dodges.

This robot is slow. A design flaw that Original Kokichi made. But I can manage.

"One year charge. Mechamaru infuse!" Unlike before, I would shoot out energy like a dumbass. Instead, I aim to overwhelm Mahito physically.

What I need is for him to use Self embodiment of perfection. If things play out similar to 'Canon' and I land a condition after the domain expansion. I can do something Geto and Mahito will least expect.

Ultimate Mechamaru's hands glow orange as my attacks speed up. Mahito barely dodges them. But he gets cocky and takes a punch.

"Got you!"

My punch not only hits his physical body but his soul as well. The punch sends Mahito Soaring as he punches through multiple trees.

Not letting up My robot roars as Mahito finally comes to a halt a hundred meters away. Charging through the forest I point both palms forward.

"6 Month charge."

Energy builds up and shoots out in twin beams of Cursed energy. Mahito transforms into a bird hybrid and dodges. Soaring into the air he transforms back to normal his hand large.

"Pft. That won't work!" My fist lashes out. Catching Mahitos's attempted punch.

Yanking his arm violently I slam him into the water as he worms his way out of my grasp. His body is a fish. Good thing I've memorized his energy signature.

"1 year charge"

I've been using my charges better than the original Kokichi largely. He only had to use so much energy because he couldn't perceive the soul.

"Miracle beams!

Beams of energy follow the fish Mahito who shoots out of the water. Flying away from my attacks desperately. He knows they can damage him.

Following Mahito's path, I shoot more beams that make him go on a more predictable pattern.

My fist lashes out. Punching Mahito Hard as he is sent Crashing into more trees.

-BOOM!"

Mahito slams into a tree and craters the ground as I Land in front of him in a large boom.

Mahito looks at me with a smirk. His clothing is destroyed as his mouth opens.

Deciding to focus on how a domain works I let Mahito use his. My cameras Monitor the shocked 'Geto' as he watches me allow Mahito to use his domain.

"Ryoki tenkai...:Jihei Endoka!" (Domain expansion: Self embodiment of perfection)

Mahitos's domain covers both of us as I feel Ultimate Mechamaru begin to fall forward.

He's changed his domain's coordinates so I would manifest inside of it mid-air. Smart. Diving towards Mahito I feel my smile remain. I need to get close.

Hands shoot out. Restraining Ultimate Mechamaru as Mahitos Smirk widens.

"Now. We're done." He says as I laugh internally

A domain for the weak. Something I've seen Miwa do slot and something I've seen in the manga.

[New shadow style: Simple domain!]

Roaring in exertion. I Landed a devastating punch to Mahitos turned back. When the domain user is damaged enough the domain will crumble.

Grinning as Mahito is sent flying I Look to 'Geto' pretending to be distracted as I feel Mahito Recover nigh instantly.

Mahito breaks through the side of Ultimate Mechamaru as I'm already in his face. My fist Punching out the moment his head emerges from the hole.

"You must think I'm some dumbass huh!?" I yell with determination. I refuse to die. In a battle of power, I lose 10/10 times.

That's why I need something that will shoot me to Mahitos level. I've experienced how his domain processing works all I need is a Jumpstart.

My mouth leaks drool. My eyes are dilated as cursed energy coats my fist. Mahitos Grinning face turns to shock.

Black Flash is a distortion in space that occurs when cursed energy is applied within 0.000001 seconds of a physical hit. When a sorcerer is able to achieve this, their cursed energy flashes black, and the destructive power of their strike is equal to a normal hit to the power of 2.5...

The difference in cursed energy Usage between a sorcerer who has experienced a black flash and a sorcerer who hasn't is Heaven and Earth...

-FUSHIIIII! *CRACKLE*

"KOKUSEN!"

My fist caves Mahitos head in comically. As he launched out of Ultimate Mechamaru. An explosion of black and red happens.

Following my momentum. I rush out of Ultimate Mechamaru following mahito descending form.

Utilizing 'Getos' Interest and unwillingness to interfere. My hands shoot into a tiger seal. My cursed energy explodes and takes form.

"Ryouiki Tenkai: Kikai no Seiki!" (Domain Expansion: Mechanical Sanctuary!)

With a binding vow to sacrifice the last 3 years of cursed energy, I saved. My domain's inside and outside harden. Now 'Geto' Will have a hard time breaking in and saving Mahito. And Mahito can't escape.

A Futuristic City forms around us as I land atop a building. Mahito looks up at me in fear as I smile slightly.

"I'm so thankful to you..." I say. Mocking what Mahito said to Nanami in the manga after achieving his domain.

"You're exhausted Aren't you? Only three people in jujutsu History can open more than one domain a day. 2 of them aren't here and the third one is 'Geto'" I lecture Mahito. He's out of about 90% Of his reserves.

"Geto can't save you. Even if he opens his domain it won't engage mine in a clash. The only way for that to happen is for him to be inside of my domain. Which he isn't. Blame his Curiosity and your arrogance rejecting his offered help at the start."

Hundreds of Mechamarus Emerge from the city. Each one already adapted their cursed energy to Mahtios cursed technique.

Grinning at the spirit. I get ready to torment him. My eyes widen though as I feel a Crack on the outside of my domain. 'Geto' managed to get in. So quickly?

It doesn't matter. I never expected to be able to kill Mahito here. Knowing who Geto or should I say Kenjaku is. My hopes of killing Mahito were slim.

Deciding to escape I summon more Puppets as Geto lands next to the terrified Mahito. Who knew such an evil Cursed spirit would be such a pussy when faced with death?

"Shall I help you mahito?" Geto asks the spirit who nods.

But my puppets are already charging towards the duo.

'Geto' won't let Mahito die until Shibuya. So he's unlikely to Absorb him here. The only way for 'Geto' to deal with the Hundreds of powerful Puppets is to open his domain.

"Ryoki tenkai: Taizo Hen'ya."(Domain expansion: Womb Profusion.)

Immediately a Grotesque Open barrier domain forms as I move. Using my barrier as a safe holder to negate 'Getos' sure-Hit. I managed to hold off his womb profusion as I began my escape plans.

With my Binding vow. Both the inside and outside of my barrier Geto's open domain remains Obsolute briefly as I escape through the Hoke he came in from. Subbing myself out for a Puppet of identical looks.

It won't hold for long. Normally if a Domain user leaves their barrier it would collapse immediately. But with Another binding vow that briefly Renders me Almost powerless I sacrificed 90% Of my remaining reserves to keep the barrier up

Running into the Collasped Ultimate Mechamarus Hands I command it to throw Me out of the veil. Its red eyes glow as It roars.

The feeling of getting thrown through a veil is New, to say the least. Going through the Barrier I begin to run. Not halting my momentum one bit.

I have no doubt 'Geto' Will send spirits after me. We are a few Kilometers away from civilization. I need to find a place to recuperate.

Cursed energy exhaustion Recovery time is inconsistent. With no tech and all of my puppets destroyed. I have no way to warn the others about the incoming attack.

It looks like fate wants Gojo to be sealed. That doesn't mean I can't stop Unnecessary Deaths in Shibuya.

Moving through the forest I use my remaining cursed energy to Push myself past my limits. The domain Put a lot of mental strain on me. No wonder so few sorcerers have domains. One more of those and I may get brain damaged.

I need to recover and Contact The others.

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