Satoru was following Jogo. As the curse moved through the crowd of people in an attempt to get the sorcerer out of his tail, Jogo grabbed one civilian who was just standing there to Satoru, and as he blocked it, the curse went behind him, and sent a punch that didn't hit and escaped quickly.

Jogo: Don't let Hanami's death be in vain... Hide among the humans. Hit them with the extension and run! "CHOSO! I'LL FUCKING KILL YOU IF YOU DON'T HELP!"

Choso: "Yeah, yeah."

Three of Choso's blood arrows went at Satoru, and one pierced a civilian's head. But none of them hit the blindfolded sorcerer.

Satoru: Keeping their distance, huh? But that's the best they can do. The people who can't see curses are starting to avoid me. Once enough people scatter, I'll be able to get volcano head. Undoing my technique like just now won't work, either. It knows I'm aiming for a close-quarters brawl. If it manages to cooperate with the kusozu and use a large-scale technique over the crowd... things will get troublesome. I'm sorry. Not everyone will be saved. "But I'll definitely exorcise it."

Jogo: Not yet?! 20 minutes have passed a while ago!

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Getou: "Not yet. Gojo Satoru is doing just fine! You gotta get him more worked up."

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The Mei Mei team was currently running through the metro station.

Mei Mei: "Incredible, Itadori-kun!"

Itadori: "Huh? What is?"

Mei Mei: "I honestly thought you'd have more trouble. You're good enough to be a first grade already. I haven't seen anyone get this far without using any techniques since Kusakabe."

Itadori: "It wasn't the patchwork guy. Though, It wouldn't have been so easy if it was."

Ui Ui: "My sister is praising you. Just take the compliment!"

Itadori: "Thanks! It's an honor!" 

Mei Mei and Itadori slide through an escalator handrail, while as Ui Ui just went down the stairs. Upon coming down they noticed a man sitting down by a wall.

Mei Mei: "...We're too late."

Itadori: "Hey, you! Are you okay what happened?"

Civilian: "Everyone... monsters... they got on... the train... he said... IT WAS ALREADY FULL! SO I WASN'T NEEDED!"

Suddenly the man's head began to expand in inhuman ways before falling to the floor, dead.

Itadori: "He was here! SHIT!"

But then he remembered something the man said before dying. 'they got on the train'. Realizing something.

Itadori: "Gojo-Sensei!"

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Satoru was still fighting the curses when suddenly the train arrived.

Jogo: "He's here!"

Civilian: "It's a train! Get outta the way! I'm getting in!"

That civilian began to push the people on his way as he came closer to the train, but just as he was next to it, he saw the window, the train was full of... those beings.

The doors opened and humanoid creatures began to spread out, going with only one intention, murdering all the civilians.

Satoru: "... What are they thinking?"

Suddenly, Mahito came skipping out of the train.

Mahito: "Jogo~ The air smells great here~ It's full of fear. We should really leave a few humans alive. We could release them in a forest and hunt them on the weekends."

Jogo: "Can I just burn the whole forest down."

Mahito: "You know who both people would get mad at you."

Jogo: "Hanami's dead."

Mahito: "... For real?... Hm... guess that just makes him be mad if you do it, which is not in your favor."

The humanoid creatures were quickly reducing the number of civilians in the station. Mahito used some sort of long creature to use as a surfboard to go above the civilians. 

Satoru: Have you guys gone crazy?! Whittling down the number of humans... Is not to your advantage!

Mahito quickly approached Satoru as the curse attempted to hit him with a punch to the face, but his fist stopped some distance away from his head.

Mahito: "Ha ha! I can't really hit you!"

Satoru: Patchface! He's the one Nanami and Yuji were talking about!

With two hits, Satoru sent the curse straight into a wall.

Mahito: "Let me share one thing I found disgusting about humans... There's so many of them"

Suddenly, more people began to drop down from where Hanami's roots once were covering the ceiling.

Satoru: The atrium the weeds closed off earlier is opening up now?! "Tch." There have to be more curses or curse users upstairs. Are they planning to dump everybody in Shibuya down here?!

Choso:

Mahito:

Choso/Mahito:

As the curses used their techniques, a large number of civilians around Satoru died. Using that as a distraction, Jogo appeared from above the sorcerer as it attempted a strike from above.

But just as it was about to hit, Satoru moved out of the way and grabbed Jogo's arm, but it came off the curse's body. The sorcerer just looked dumbfounded at the arm and then at Jogo who had a slight grin and backed away.

Satoru stood there, as the civilians and creatures ran around him, some trying to survive and the others hunting them.

Mahito: Satoru Gojo is different from Itadori in that... He is capable of being cold-hearted. He's willing to make certain sacrifices... In order to exorcise us. However, now that the casualties are increasing and more live humans are entering the fray... the limit of what he is willing to sacrifice is reaching its breaking point. You've been put in a position where your only option is casting a domain. By using unlimited void, you could kill us curses along with every person here! You could save everyone outside of the domain, plus everyone not down here in the fifth-floor basement! But you can't! YOU WON'T! YOUR CONCEPT OF SACRIFICE IS LIMITED TO THE HUMANS WHO ARE KILLED BY CURSES, NOT ONES KILLED BY SATORU GOJO! I'LL MAKE YOU THINK AND AGONIZE!

But suddenly, the curses felt a change in Satoru's cursed energy, knowing what is about to happen next.

Mahito: "You serious?!"

Satoru: "

Satoru Gojo's all or nothing. A domain expansion of 0.2 seconds! The time was just an intuitive guess. Gojo conjectured that a non-sorcerer could withstand 0.2 seconds inside the domain without suffering lasting aftereffects.

Although this is just a rough estimate, the amount of information that flooded the brains of the non-sorcerers, including those transfigured, was about half a year's worth. Everyone was left standing, unconscious. 

In the aftermath, the humans at B5F who survived would be rehabilitated and able to rejoin society two months later. Simply speaking, this level of immeasurable void could allow the special-grade curses to awaken at any moment. Taking into consideration a counter-attack, the targets would be narrowed down to transfigured humans.

Approximately 1000 transfigured humans, who were released within B5F of the Fukoshiki line, would be annihilated in 299 seconds... After the deactivation of the domain... by the hands of the strongest jujutsu sorcerer alive(?)! 

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Some time ago, unknown location.

The special-grade curses, Mahito, Hanami, Jogo, and Getou were all sitting by a table, playing a game called Riichi Mah-jong.

Getou: "Prison realm is a living barrier, the final remains of the Buddhist monk Genshin. There is nothing prison realm can't seal. But then it must have... conditions on using it. One minute."

Mahito: "What?"

Getou: "After opening prison realm... we have to keep our target... within a four-meter radius for one minute."

Mahito: "So, who we're going to trap? Satoru or Nakatomi?"

Getou: "It depends, on whether each poses a bigger threat, I'm expecting only to seal Satoru."

Mahito: "Hm... How you're so sure about that."

Getou: "I just have a feeling."

Jogo: "You know your feelings won't decide about him. What if he decides to go against us?"

Getou: "If fates prove us wrong. We're not to worry, I have a contingency plan for such a case. Just wait for my signal and actions will be taken."

Jogo: "And how are you sure it's going to work? You know mere seals or technique won't help you."

Getou: "I know, that's why I have this."

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(y/n) was walking in the empty streets of Shibuya, with a gap in his bandages big enough for his right eye to see. He looked at the empty stores, some with the lights on and some with them off, but one especially caught his eye, it was a clothing store, but what had made him look, was a shirt with a cute cactus stamped on it, in the front window.

(y/n): "Mei would like that."

Looking at his surroundings and seeing no one was there, he walked towards the store and punched the glass, shattering it. He then proceeded to take the shirt off the mannequin and folded it, to then store it in one of his pockets.

(y/n): "Gotta keep it clean, I'll see what more I can find."

He kept walking until he encountered a man sitting by the sidewalk, but something gave a strange aura to him. Like he had something. Our blindfolded sorcerer kept walking until he was just a few feet away from the man, and he seemed to notice him.

Man: "O-oh, you're here... H-he told me to wait for you, in case you came."

(y/n): "Wait for me? Who?"

Man: "H-he."

Just as the man gave his last word, his body began to expand in ways that made him lose his human figure, and was just an amalgamate of body parts.

(y/n): "E-eh?!"

The man was already dead since he began expanding, but (y/n) got scared and shot him just in case, besides, he looked horrifying.

(y/n): What did he mean by they were waiting for me? I guess I'll find out, they were at the metro station, right? So that's where I'll go... Where is it tho?

He kept forward until a sort of creature was flying straight at him. Luckily he reacted quickly enough and swatted it like a fly, sending it to a nearby wall, only leaving a splash of blood.

(y/n): "What?"

He looked in the direction where it came from and stared at a familiar figure. Seeing as it slowly made its way forwards and revealed itself.

Getou: "It's been a while, Nakatomi."

(y/n): "Huh? Oh... It's you."

Getou: "You don't seem surprised."

(y/n): "I figured you were coming, may I know the reason?"

Getou: "Join me in my quest, let's be us two to change the world, just like old times. I tried to get to you first, but I saw when that blue-haired girl and Satoru arrived at you before, I could've intervened but, I wanted to see your reaction. And your actions that would follow. You've changed." 

(y/n): "I didn't join you... Well, not me me at least. This whole yin-yang stuff's complicated... Her name's Miwa, by the way. Don't blame me for joining the other side. Met some nice people, and a certain nice one."

Getou: "Is that so? Well, you've had your fun, how about rejoining my side and aiding e once more?"

Before he could answer, he heard some footsteps and turned around, spotting Itadori and Mei Mei, beside Ui Ui.

Itadori: "Hey! You..." What was his name? "Stay away from him!"

Mei Mei: "Be ready, Itadori." What are you planning, Nakatomi?

Getou: "And so, what will your answer be, (y/n)-san?"

Decisions have to be made, and they will have severe consequences, so what will they be?