Someone is a huge fan of Jujutsu Kaisen and has even bought a ton of merch in private. But one day, JJXX releases Chapter 236, killing his invincible idol and making him say something completely out of character!
Enraged, he snaps, buys a plane ticket to Japan that very day, and prepares to take JJXX out in person.
That rage, powerful enough to destroy the world, is what catches the attention of the god of the fictional world.
The creator used him to amass wealth, then trampled all over him. The god of the fictional world senses the grief of countless readers and chooses the person with the most intense feelings to enter the Jujutsu world and change the ending.
It's just that the god of the fictional world clearly doesn't understand human emotions well enough. The deeper the love, the deeper the hate. By then, OOC 5T5 is the person he hates most after JJXX!
[And so, a madman arrives in the world of Jujutsu.]
The old cronies on the Jujutsu Headquarters council?
Kill them.
The Big Three Families trying to recruit him?
Kill them every time they come around.
The curse users and cursed spirits who think they can team up with him while watching the show?
Kill them all.
In the end, he's taken away in handcuffs and shackles and delivered to Tokyo Metropolitan Jujutsu Technical High School. The old cronies figure they can do nothing with this madman, so they'll pit him against Gojo Satoru. Surely the lunatic wouldn't dare lay a hand on Gojo Satoru.
But...
The moment he sees Gojo Satoru, the man's eyes glow red. He yells Gojo Satoru's name like a man possessed and goes on a killing spree!
Suguru Geto barely manages to stop him.
The madman looks at the person holding him back. "Oh, right. I should kill you first. I like you a lot too, Suguru Geto!"
Suguru Geto's face fills with question marks.
Where did this lunatic come from, confessing his love and killing people the moment they meet?
Later, just when the god of the fictional world thinks it's all over, the madman actually completes his mission. What's more, he really does manage to take JJXX out in person!
Theme: Save the world by saving one person