Chapter Text
"Sensei!" Itadori shouts worried as he watches the screens where Gojo-sensei was battling. Standing up, he clenches his fist, millions of thoughts racing through his head. A sharp pain went through his head making him grunt out and held his head. From the corner of his eyes, he could see Choso coming to him, putting a hand on his shoulder.
"Little brother, are you okay?"
His voice was so distant, Itadori couldn't hear anything. A loud ringing echoed in his ears, it was getting too loud that he shut his eyes, hoping whatever was affecting him went away. Not long after, it went terribly silent, He peeked one eye open, seeing people in front of him, a crowd of people to be exact.
Tall building surrounding him. What? wasn't he in a room with the others before? why is he here? where even is here? He thought to himself as he looked around. Slowly, the sound of the crowd catches up to him. It was loud, familiar yet not. The more he looked, the more familiar the place is. Taking a sharp inhale, he widened his eyes in recognition.
"Is this..Shibuya?" he muttered, horror painting his entire face before he furrowed his eyebrows, scanning the area. He walked and took a look at his surroundings. It was definitely the 31st of October, where everything went down. He gritted his teeth, memories bubblling, remembering everything that happened. It was getting pretty late already, he needed to hurry.
Considering where he is, it's going to take a while to get to where Gojo-sensei is. That's fine, he thought to himself as he went to a running stance and begin to dash. He didn't set the record for 50 meters in 3 seconds for nothing.
Despite his running speed, he made sure to avoid everyone that's in Shibuya, they would get suspicious after all. Finally arriving at the scene, Itadori snuck through the crowd, pulling his hood up to make sure no one sees him. Despite his efforts, it's still a bright red hoodie, He thought.
In front of him was Gojo-sensei, panting after he killed all of the curses in the surrounding area. Turning his head to see the wrapped box to his side. Itadori gulped, a shiver went down his spine seeing the prison realm. He had to do it, It's either him, or the strongest sorcerer in the world. The choice is obvious to him.
In a split second he saw the box opened, He pushed his teacher to the side, feeling his midsection getting encapsulated by the prison realm. He made a disgusted face, it really didn't feel nice. But slowly, he turned his head up to see Gojo-sensei looking at him surprised.
"Yo, Sensei.." Itadori greeted with tired half-lidded eyes and a blank smile. Gojo looked at him with even more widened eyes, his mouth gaping like he was trying to say something but couldnt.
"My my, this is certainly surprising" a voice came from behind Gojo as the monk walked out with a frown on his face. If Itadori could make an even more disgusted face, he would. To think, this person was his mother. It certainly gave a bad taste in his mouth.
"Where did you come from? I'm pretty sure you weren't supposed to be in Shibuya" Kenjaku stated, rubbing his chin.
"It doesn't really matter, does it?" Itadori said, clicking his tongue in annoyance at the man
"Who are you people? you're clearly not who you're supposed to be" Gojo gritted his teeth in annoyance, looking at Kenjaku and Yuuji.
"Your body is clearly Suguru Geto, but you're not." His blue eyes then trailed to the trapped pink haired boy, confliction in his eyes.
"You...you're clearly Yuuji. But somehow I don't know you"
True, This Gojo Satoru didn't know him. He came from the future after all, however the fuck that happened. Itadori isn't the brightest bulb, he isn't going to try to figure out what's happening. He could only take the moment and seize the opportunity.
"I'm still Itadori Yuuji, Sensei" Itadori let his head tilt to the side, a sad smile over his face.
Gojo scanned the boy. His Six-Eyes was as confused as he was, there were scars where he knew Itadori didn't have, the one over his face to be exact, it went across his face and there's one on the corner of his lips. Yuuji was supposed to be this sunshine character with a blinding smile that could make anyone melt. But this person in front of him, he had tired eyes, a deep frown on his mouth, and a blank stare that could make anyone steer clear of him.
Itadori heard a sigh from Kenjaku, the man shrugged and shake his head in disappointment. "What a waste of a good curse object"
"Not going even to try to pretend like you care for me, mom?" Itadori said, rolling his eyes when Gojo and Kenjaku gave him the exact same face of shock.
"You knew?"
"Not long ago"
Kenjaku grinned, chuckling like he was amused.
"How interesting! How did you know?"
Itadori let out a long groan, he really didn't want to talk with anyone, especially when he sees Mahito starting to wake up. How annoying. Rolling his eyes, he clicked his tongue.
"You can't undo this right? just close the gate already" Itadori sneered, watching as Mahito strut up to them with his eyes widened at the situation.
"Wait wait wait! does this mean I can't kill him?" Mahito whined, pouting
"Shut up, you're so annoying" Itadori muttered under his breath while Gojo stared at him slightly wary. The Yuuji he knew didn't talk like that as he narrowed his eyes. What is happening?
"Well, if my sweet son is clearly asking for it. Then I wouldn't decline him" Kenjaku smiled as Gojo clenches his fist.
"Gate Close"
As he heard those words, he could see Gojo-sensei stammering up to him, trying to force the prison realm to keep open. Itadori could only give him a smile.
"Please save everyone" were his last words before his vision went dark.
The next time he opened his eyes, he saw skulls around him. The place was dark and cold, but somehow Itadori didn't mind it.
"So this is what sensei had to deal with" he could only mutter. Who knows how long it'll take for him to lose his mind. Would anyone even come for him? he's not Sukuna's vessel anymore. He doesn't have a value. Itadori thought bitterly as he shooed one of the skulls so he can lay down on the ground. If no one was coming for him, might as well make it comfortable for himself.
-----
"Yuuji! Yuuji!" Gojo screamed as he saw the boy getting sealed up. The box falling down into the ground with a loud thud, the various eyes surrounding the box opened to reveal the honey brown eyes of his student.
"Well, you can have it. I have no use for the useless box anymore" Kennjaku laughs making Gojo turn around, almost giving himself a whiplash as he gritted his teeth. That man will pay, he hurt his beloved student, he took his best friend's body. Raising his hand, his fingers crossed.
"Domain Expansion-"
-----
Somewhere in Shibuya, the original Itadori Yuuji just arrived.