Time skip.
November 2016.
Keitaro was currently on one of his many trips. He was in Spain, staying in a small village for his research.
He gazed at the injured man, there was no doubt about it, this man had been cursed.
"Akane, are you awake?" Keitaro said calmly, his Kitsune companion, always eager to help, jumped off his shoulder and carefully made her way toward the man.
She open her mouth and like a vacuum, she suck out all of the foreign curse energy that was currently in the man's body.
Keitaro applied some Rct to the man, before feeding Akane a pill, he patted her head before saying.
"Good girl"
She squeaks cutely before once again jumping on his shoulder.
"Note to self, a curse of conquest is strong" He mutters to himself as he scribbles down some notes.
As he was about to write some more wonderful notes.
His phone begins to ring.
He gazed at the phone, picking it up, he wanted to see who the caller was.
{Satoru Gojo}
.....
Well, it never hurts to answer a call right?
Deciding to take the call.
"What up?"
"Keitaro-kun, I have wonderful news for you!"
Judging by the enthusiastic tone that Satoru used, it was either actually good news or something not so good, either that or Satoru was dumping his responsibility on him again.
He sighed to himself, what kind of bullshittery would it be this time?
"Aw, were your excitement Minato"
"You do know I can still reach you right?"
"I do, but you won't, you adore me too much to hurt your friend"
Keitaro sometimes wonders what gave his friend such a colorful personality...
"You call me for a reason, so spill it," Keitaro said calmly.
"Fine, you see, Jujutsu High got a new student!"
The excitement in his voice was way too high for what he said.
"What's his whole deal?" Keitaro suddenly asked.
"Jeez, would it hurt you to show just a bit of excitement," Satoru said sighing just a bit.
Suddenly a light bulb went in Satoru's head.
"His curse technique is copy"
...
"As in, he can copy other curse techniques?"
"Yup"
"How many can he copy? What are the requirements? Can he paste techniques? What would his reversal look like? How good is his juju-"
"Jeez calm down, having a full-on erection over a technique" Satoru teased.
"For the love of Christ, I am not getting erect"
"And the reason Shoko couldn't walk the day before your trip is because she fell down some stairs"
The sarcasm in his voice was real.
"Shut it"
"Speaking of which, how the fuck did you manage that, she has rct....that poor bed"
"Satoru, stop sidetracking, back to the student"
"Yes, sir"
If Keitaro could, he would punch his friend but currently, he couldn't do such a thing.
"So what is his name?" Keitaro asked.
"Yuta Okkotsu, it seems like he was cursed by his childhood friend, now a curse of his friend follows him around, " Satoru explained.
"So when you come back to check out the curse soul and free it, it is your whole stick and all" Satoru said calmly.
"I will take the next flight to Japan" Keitaro added calmly.
"Oh, Did I forget to add that Maki had beaten the curse..."
"Say what?"
"Well you see, it tried attacking her since she got on guard after feeling Yuta's curse energy, this led to a small scuffle where Rika had to flee....what did you feed her"
"Love and care, alongside plenty of protein.." Keitaro said innocently.
"She jumped on air....."
"Those proteins are working extra hard"
"Did you make her have a contract with Kirin...."
"Me never...."
As those words left Keitaro's mouth the sound of a thousand birds chirping could be heard.
"You don't say," Satoru said sounding unimpressed.
"Is she currently fighting it..." Keitaro asked to which his friend replied.
"Calling this a fight is an insult"
"Why is Maki fighting it to begin with" Keitaro asked to which his friend replied.
"Well she found out the curse was strong, told Yuta to not be a wimp and control his fear, before saying she will beat the wimpiness out of him.....she is currently....playing volleyball with Rika...."
"Keitaro...why did you make a stronger Toji...."
"Heh, Megumi is still stronger..."
"Oh that I know, "
"Is he still refusing to go to jujutsu high this year because he wants to spend one more year living a normal life with his sister"
"Yes."
"Well, I will be on my way, I will be training Yuta soon"
"Domain expansion Idle Death Gamble"
The line went quiet after Keitaro heard that.
"Satoru....what is happening right now"
"You see my wonderful friend, Hakari used his domain expansion..."
"Why..."
"The fever was high..."
"Did he do his reversal..."
"Yes..."
Hakari's reversal was straightforward: instead of just him spinning for the Jackpot, both he and his opponent were competing for it. If the opponent won, they would receive the same benefits Hakari gains from the Jackpot—unlimited cursed energy and enhanced Reverse Cursed Technique (RCT) speed for 4 minutes and 11 seconds.
During this time, Hakari would only have his base stats. However, if Hakari managed to hit the Jackpot first, he would not only gain 4 minutes and 11 seconds of immortality but also unlimited cursed energy.
His opponent gets fully stripped of curse energy and basically becomes an average person...
The sound of someone landing a Jackpot could be heard.
"Who won..."
"I have good news and bad news..."
"Let me hear it..."
"Bad news...Rika has gotten the Jackpot...Good news, Maki is handling her just fine."
....
"I wonder what I could teach Yuta...."
"Well his basics suck, so get off your scientific high."
This little banter went on for a while.
A/N Geto needs a buff, if he doesn't get it, Maki will do him worse than Toji.
For anyone saying, oh they are too overpowered, my answer is simple, not really, it is quite realistic, Maki had Keitaro as a teacher, and she has gotten used to using natural energy, plus she has a contract with Kirin.
Megumi has all of his shinigami except Big Raga.
And Hakari....had gotten better at gambling his life.
The ranking goes like this.
Keitaro and Satoru
Hein Era Sukuna
15 Finger Sukuna
Yuki
Current Kenjaku
Megumi.
Maki
Geto
Hakari.
Edgar.
Rika.
Inumaki.
Current Yuta.
Mai
Panda
Edgar is only above Rika, only because she is like a mindless curse...also because she is a curse, and Edgar has Rct he gets an advantage.
Also for anyone wondering how big Sukuna gets through them.....he doesn't, the story probably ends during the culling game, and Sukuna's fight will be a what-if.