This is gonna be AU in jujutsu kaisen new curses and people would be appearing and the ways techniques are used and can't forget about our mc as he traverse through this new world with the powers of a Phoenix
[Third Person's PoV]
Ash turned towards Gojo "It looks like they chose who they want to fight, why don't we honor that"
Gojo shrugging his shoulders just replied with "Sure let's go with that"
As soon as those words left his mouth Ash dissappeared from where he was standing and reappeared infront of Jishin. Without saying a word Ash sent a punch towards his rectangular head which sent him flying away and separating from Jogo.
Jogo slowly turned his head towards Ash 'How's that possible, I didn't even see him move'. Before Jogo can go deeper in his thoughts Gojo appeared right next to him and puts a hand on his shoulder.
"Why don't we go have our talk somewhere else"
With that Gojo dissappears taking Jogo with him.
Ash just flashed stepped and appeared infront of Jishin who was already up from the ground with broken teeth and blood flowing out of his mouth.
Ash just smirk "It looks like I need to hit you again to fix that ugly mug of yours" As Ash flash stepped infront of Jishin, Jishin was already waiting for him.
Jishin covered his fist with his technique and sent a glowing blue punch right into Ash's stomach destroying it, which caused Ash to vomit up blood.
"HAHAHAHA Is this the best of the Jujutsu Sorcerers, you seem pretty weak to me."
Ash didn't say much and just healed his injury and while wiping the blood from his lips he said "Alright you whitebeard rip off, you're going to be fun to mess with"
Ash appeared infront of and sent a fist made of fire towards him causing Jishin to scream out in pain.
"DAMN IT, IT BURNS WHY DOES IT BURN SO MUCH. NOT EVEN JOGO'S FLAME BURNS AS HOT AS THESE"
"That's for me to know and for you to find out" Ash said as he started to throw punch after punch with flames covering his fist. Ash didn't stop and just continued wailing on him.
Jishin getting tired of getting beaten stomped on the ground causing an earthquake around the area causing Ash to lose balance slightly which gave Jishin the perfect opportunity to jump back
Once he was a good distance away he spread his legs and stomp them once again summoning giant Golems with different appearances.
Ash seeing this just smirked, as soon as he saw them he waved his hand and summoned fire constructs in the shapes of eastern dragons. Ash then made them surround the Golems and start breathing fire on them, melting them completely.
While Ash was burning away the Golems, Jishin started charging up his curse energy building it up. He then released it, releasing a giant Shockwave that was destroying everything in sight.
Ash seeing this conjured a flame sword and fueled it with curse energy making it burn brighter. When the attack was right infront of him, Ash simply gave a forward slash splitting the attack in half.
Jishin seeing this clicked his tongue and conjured multiple spikes and sent them blasted at Ash at a super sonic speed. Which managed to pierce Ash, but all of his wounds quickly closed, bringing him back to a perfect state.
Jishin annoyed at this point due to not doing any significant damage uses a large amount of his curse energy and sent it towards the ground. The ground then starts to split open.
While that was happening Jishin says "Earth's Guardian"
As he finished saying those word a large giant hang bigger than any of the previous Golems appeared and then another one appears. The hands then started pushing itself up from the ground, as if crawling from the Earth itself.
Seeing such a ginormous creature Ash gives off a blood thristy smile and says "Oh this is going to be fun"
Jishin seeing him smile gives off an arrogant expression "You are a fool to underestimating the Earth's Guardian. I can't say it was fun meeting you but at least I'll have fun watching your entire body get squash to death. I like to see you regenerate then"
Jishin then pointed a finger towards Ash and commanded "Kill him" which caused the Earth's Guardian to throw a heavy punch right towards Ash.
The fist was so big the it was normally impossible to dodge but as the fist approached Ash's smile didn't leave his face. His smile just got wider and grabbed a hold of his pendant.
When Jishin saw the fist land and the ground cave in due to the force of the fist, he started laughing loudly with glee
"HAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHA THEY SAID YOU WERE IMPOSSIBLE TO KILL BUT I JUST SQUASHED YOU LIKE THE BUG THAT YOU HUMANS ARE. THAT HUMAN SORCERER DIDN'T KNOW WHAT HE WAS TALKING ABOUT."
Jishin then heard the emotionless voice of someone he shouldn't "Oh, and can you tell me more of this human sorcerer you're talking about, I would like to know more about him"
Jishin just looked at this in shock, Ash was pushing back the enormous fist with only two swords in his hands.
"HOW IS THAT POSSIBLE, YOU SHOULD BE SQUASHED LIKE THE BUGS THAT YOU ARE"
Ash with a smirk just replied with "I'm the definition of impossible, so something like this is fairly simple"
In Ash's hand he held both Mas and Menos, due to the force of the giants fist Ash's shirt has already been obliterated so one can see two distinctive tattoos going up both of Ash's arm. They were the tattoos of thorns and bandages wrapping themselves around him.
Ash while pushing the fist back jumped out the way and landed on top of the giants fist. Once he was ontop he plunched both blades inside and started running up the giant, destroying it's entire arm.
Jishin seeing this panicked and shouted once more "QUICKLY GET HIM OFF OF YOU, WHAT ARE YOU WAITING FOR"
The giant roared as it swung its other fist and smashed it to where Ash was, completely destroying its own arm becoming amputated. The giant just kept sending it's fist missing greatly and destroying it's own body.
When Ash got high enough he aimed both sword towards it's chest "I mean come on, how simple can you get. Really making a core for it and leaving it in the center of it's chest"
Ash sent more curse energy into his blades making it heal him more as the other sucked a larger amount of blood becoming sharper and stronger.
Ash then jumped towards the center of the being and gave one final big slash with his two sword cutting the giant and destroying the core. Completely destroying the giant from existence.
When Ash landed on the ground he just gave Jishin an arrogant smirk and point his sword towards him "I'm so going to make you suffer"