Duality |Jujutsu Kaisen| |Reader Insert|

|JUUNI|

You flew up into the air, watching Jogo launch into the lake with a large splash.

"Oh, this is perfect," Satoru said, appearing at your side. Then he went away as quickly as he came.

"... wut." You blinked. Deciding not to wait for him, you flew over towards the lake and slowly descended down, standing on top of the surface. Jogo slowly sat up, having spotted you.

"You..." He called out. "What are you?" You toyed with the bangle on your wrist.

"Annoyed."

"Sorry about that." Satoru reappeared, floating behind Jogo. In his arm was a clueless Itadori. Your brow twitched. For god's sake.

"Where the heck--?! Hey, where are we?!" Itadori squirmed.

"Were you waiting?" Satoru asked.

"You left to go get him?" You deadpanned.

"Yeah. I told you, this place is perfect." He looked over to Jogo. "This is Itadori Yuji-kun, and he's here to watch."

"Mt. Fuji! His head's Mt. Fuji!"
You facepalmed. I should've eaten the finger... actually no, bad idea. Satoru put Itadori down on the surface of the water.

"Why aren't we sinking?!" Yuji exclaimed, stamping his foot on the surface. "Sensei, I was at the school ten seconds ago, right? What's going on here?"

"Oh, we warped here," Satoru replied. You rolled your eyes slightly. You circled around Jogo, watching him stare at Itadori. Does he know he's Sukuna's vessel? He's not viciously attacking like he did us.

"What's the brat for? He a shield?" Jogo called.

"A shield? No no," Satoru replied. "I told you, he's here to watch. I'm in the middle of teaching this boy a lot of things. Don't worry about him. Just keep fighting."

"Bringing in someone who will just slow you down just makes you a fool." Jogo had a grin on his face. Satoru laughed.

"It'll be fine. After all... you're weak."
You saw the caps pop off of Jogo's head and ears. Thanks, Satoru. You moved out of the way before lava erupted from Jogo's head.

"DON'T UNDERESTIMATE ME, BRAT!!!!! I'M GOING TO ENJOY SWALLOWING UP THAT SMUG FACE OF YOURS!!!!!!"
You jumped over to the other two.

"Nice work," you said sarcastically.

"Oh! Y/n-senpai!"
You patted him on his head, rather harshly.

"Focus."
A bright, blinding light came from Jogo before his eruption reached a climax, the shockwaves rocking the water under you. Itadori stumbled with the water colliding into his legs. When his flames died down, he made a sign with his hands. Here it comes.

"Ryōiki Tenkai."
A black mass encased all of you, high above your heads. The ground below you cracked apart, lava seeping through it. Stone raised from the ground, arching up over you and connecting to form the inside of a volcano. Lava burst from the floors and walls.

"Wh... what is this?!" Itadori exclaimed.

"Domain Expansion," you replied, looking around. "Using cursed energy to create an Innate Domain, ingrained with a cursed technique in the surroundings."

"What you all experienced at the juvenile detention center was an incomplete domain that hadn't been imbued with any cursed techniques," Satoru went on. "If that had been a proper Domain, all of you first years would've died. I think Megumi understood that."

"Yeah, but spreading out a domain takes a shit ton of energy," you replied. "But the pros outweigh the cons."

"One such benefit is the boost to stats due to environmental factors," Satoru explained further.