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The Battles Inside Us

Summary:

A few years after the battle of Shinjuku, Itadori Yuuji is flung into 2005 with the knowledge of the future and a rundown of the conditions for entering the past to change his doomed reality
He WILL save everyone and give those three hell
This is what he was made for after all
Nothing but a monster trying to make up for his sins
A filthy curse

Chapter 1: The Setup

Notes:

(See the end of the chapter for notes.)

Chapter Text

July 28th, 2021
4:53 pm

 

A hooded figure is seen walking through the streets of Sendai. They have their hood up,hiding their expression with their hands in the pockets of the hoodie. The city is bustling with people as they brush past each other on the pathway. The hooded figure is seen walking to the train station along with a dozen other people. The train is headed to Kyoto. Upon closer inspection it is noted that this hooded figure has two scars on their face, One across their nose, near the eye and another on the corner of their lip. They have blood-red eyes and pink hair. Wearing a light grey hoodie, It is quite obvious that this person is none other than the Sole Survivor of The Shinjuku showdown and the only Special grade sorcerer on the planet, Itadori Yuuji.

 

Yuuji walks out of the train station, heading straight for Jujutsu high. Walking the steps, he wonders why he doesn’t just run everywhere instead of using transport like a normal person. He enters Tengen’s barrier with a cold expression on his face. After entering the building he is greeted by the assistant manager who takes him to the Higher ups’ quarters.


As the doors shut behind him they speak up “Itadori Yuuji” one of them says. “You came back from your mission already?”

 

“Why? Am I not allowed to come back? You’re the ones that called me here.” He deadpans

Unlike with Gojo the Higher Ups in this time are genuinely terrified of Yuuji because they know if they do anything to piss him off he will not hesitate to murder them exactly how Gojo did last time. And unlike Gojo, Yuuji has no students or reason to stay at Jujutsu High. His classes had been suspended since the battle with Sukuna because there was nothing left for him to learn and as the only Special grade left he was constantly on missions.

But that's besides the point, every single person he knew had died to Sukuna and the only thing keeping him going was the fact that he was needed. He was the new ‘Strongest Sorcerer’

“We have another mission for you, Itadori Yuuji” one of them says.

“We need you to carry out the exorcism at Tokyo before the cursed spirits start leaking out of there” another declares.

“Is that all?” he says. Then “You seriously called me here to say this?”

“We also need you to check on Ryomen Sukuna’s finger keeping up the barriers around Tokyo and Jujutsu High”

 

He doesn’t respond and silently leaves the room. He knew those damn geezers weren’t there to just chat with him. He thinks back to every time Gojo-sensei talked shit about them and thinks “Sensei was so right about how insufferable they were, I actually get it now”.

 

Jujutsu High’s Tokyo campus was abandoned after all the shit that went down. And after the massacre there weren’t nearly enough students left for two campuses so both were merged into one located in Kyoto. Tengen’s barriers were being held up with Sukuna’s final finger but those weren’t permanent and would cease to exist sooner rather than later. All the cursed energy focused on Tokyo after the existence of curses was revealed was causing huge amounts of cursed energy to be directed there and as a result almost all cursed spirits were being created there. The area was labelled uninhabitable and not even seasoned Grade 1s were sent there to exorcise those curses. But Itadori Yuuji wasn’t most sorcerers and since then he had been exorcising the cursed spirits of that location.

He walked through the hallway to maybe get a snack when two Grade 1 sorcerers walked by. Upon seeing him they immediately get flustered and bow. He brushes them off with a slight smile and says "There's no need for that” and as he walks away the smile is swept off his face. “I am seriously not made for this”

He sighs and thinks he should go to his apartment to freshen up.

As he walks into his apartment and tosses his shoes off, he sinks into the couch.

 

Yuuji’s apartment is quite barren with the only things indicating someone lived there being food and dishes piled in the kitchen.

 

His apartment has about four rooms with the basic necessities but nothing more. No posters, books or movies lying around.

 

He just sits there hunched and staring at the floor thinking of absolutely nothing and everything at the same time when he decides to go take a shower and have a snack before leaving.

 

He takes off the shirt under his hoodie and stares in the mirror at the person he’d become, threatening people to make them bend to his needs while almost getting killed by the same people multiple times.

 

He just traces the two scars on his face and the deep gashes from Sukuna all over his body-ones he couldn’t heal properly during the fight because of his freshly learned Reverse cursed technique

 

He looked like.. A monster, and one he damn right is with the looks of it. A filthy curse- that’s it, Just a monster trying to fit in with actual people-

 

He has a shower after which he changes into a black hoodie-”I always wear hoodies now huh” he wonders. He boils water for instant ramen, eats it, and quietly leaves the house while locking the door behind him. He makes his way to Tokyo by subway where he enters Tengen’s barriers to exorcise the curses present there.

Around an hour later he goes to check on Sukuna’s finger-located in a warehouse surrounded by some weird cursed technique to check for intruders when he hears a faint buzzing sound coming from around the area, after which a sharp ringing fills his ears. He looks around searching for the cause- maybe an unregistered Special Grade when a light blue void surrounds him. It feels like he is rushing through the sky at the speed of sound.

He starts panicking because “What the actual fuck is going on?”


He tries to pour his cursed energy out to check or sense what’s going on or who’s doing this


It almost feels like a domain, he wonders while the wind rushes into his face like a rope pulling him backwards- he almost stumbles back then thinks-
“How can something so powerful go unnoticed?” he thinks out loud, then- “Hey! You gonna get out or am I gonna have to force you out?” he yells

 

“Itadori Yuuji, Cursed Child”

A familiar voice speaks-

“Tengen?”

(There is not an ounce of respect in his voice)

“What the hell is this? Wait-didn’t you die?”

“Listen- For I do not have time” they say authoritatively.

“What a way to start a conversation” he rolls his eyes. He couldn’t care less about that old thumb. Only gives two shits to living longer and nothing else around..-him? Does Tengen even have a gender?

“You gonna start yapping or what?” He says boredly. He does not want to deal with this and would rather be anywhere else.

“I am sending you into the past” They say with finality in their voice.

“....huh?”

“Our future is too doomed, I am sending you back into the past t-”

“I HEARD YOU THE FIRST TIME” He shouts “THAT’S WHY I SAID HUH? You may be an immortal entity but you don’t just drop bombshells like that out of nowhere AND ESPECIALLY NOT ONES AS BIG AS FUCKING THIS. And how are you even- how am I supposed to believe you ya old hag? How are you alive?” He pauses to take a breath. He is absolutely shellshocked by the revelation.

“I made a death binding vow right before Kenjaku killed me. So I am still dead, but the binding vow is that as soon as my barriers go down every jujutsu sorcerer that survives the fight against Sukuna would be sent to the past to fix things. I feared adding too many people or just the strong ones would impose more restrictions on the traveller but it seems, you were the only one.”

 

 

There is a silence between them for around 5 seconds, where Yuuji is just thinking about that fated day while Tengen continues;

 

 

“I will be sending you some time before the Star plasma vessel mission to help me merge with the vessel before her death to Fushiguro Toji. That was the turning point for most of the things that happen in the future and you are probably the only person who can do this, no- you Are the Only one that can do this, Cursed Child”

 

 

He is silent for a few minutes-

 

 

How is he supposed to believe that all the shit that went down could just be reversed and- why now? After everything that happened why now? Why him? Literally anyone other than him would be fine for this role so- “why?” He says with a shaking voice,

“I don’t- I can’t do this” he says after a beat has passed. “I’m not a genius or strong enough to do something like this and-”

 

He stops and finally contains himself. This is jujutsu we’re talking about, if Time Travel WAS possible, it would only be because of something as crazy as sorcery and this is NO TIME TO PANIC WHEN EVERYONE’S LIVES ARE ON THE L..line?

No, forget that he can save everyone-

Fushiguro

Kugisaki

Gojo-sensei

Choso

Todo

Okkotsu-senpai

Nanamin

Zenin-senpai

Everyone..

“Tell me what to do” he exclaims with finality in his voice and coldness in his eyes. Yet they still burn with the brightly formed determination he had lost years ago

“I will save them” he declares to himself in his head as Tengen starts to explain the conditions of the vow.

Notes:

Hi guys- if you're reading this tysm for reading this chapter ilysm
I spent 4 months daydreaming about this and had to get it out after all the fics i binged? on ao3
I thought there are NOT ENOUGH JJK TIME TRAVEL FICS on ao3 that are gen sooo I thought I should make one
This is my first time writing something that isn't a school essay on the cons of gadgets so I hope someone likes this enough to read it with me
I want to continue and am genuinely soo excited. Dw I wont drop it I love jjk so much ong
Hopefully I got Yuuji's characterisation down fine I thought he'd grow a bit of an attitude after.. yk

Anyways this is getting too long ty for reading and there is ZERO chance this doesn't get updated withing a month unless college eats me alive
I promise the next chapter will be longer just had to set up some of Yuuji's character first

warning; NOT COMFORT the angst is coming..hehehe.
byeeeeeeee :)
Edit: WHAT? 100 HITS IN A DAY?OMG I WAS NEVER EXPECTING TO GET THIS MUCH ATTENTION
Tysm to everyone who left a kudos or comment
I promise I won't dissapoint