Magic battle

(well damn... I'm about to explain everything...)

Tokyo, Japan.
Have you ever seen strange creatures?... They are called curses, and only sorcerers can see them... And so, there is a special magic school where sorcerers are taught how to fight these curses.

A little bit about the curses:
They appear when ordinary people experience negative emotions (kind of reminds me of the Ladybug cartoon, or maybe I'm just crazy?). Curses kill people and sorcerers (who knows why) and that's why sorcerers kill them.
And so... it's 2021, and new first-year students have been living at the magic school for a month now, or to be more precise:
Nobara: a beautiful girl, 15-16 years old, she's kind but mostly stubborn. She really loves clothes and shopping malls.
Itadori:
A guy 15-16 years old, he's kind, caring, and has a sense of humor. But... he's not exactly human. One day he swallowed Sukuna's finger (the King of Curses), so if something happens, he can call upon Sukuna to possess his body and kill someone (though Sukuna is obviously against it).
Megumi:
An ordinary guy, but an emotionless indifferent type. He's 15-16 years old.

And so... that day, the first-years were minding their own business... when suddenly, Gojo (their teacher, who by the way is very handsome and the strongest sorcerer) burst into their common training room with the speed of lightning and shouted:

— KIDDIESSSS,
I'M GOING TO BALI! Now you guys go on a mission, apparently a new powerful curse has appeared!

Itadori immediately frowned, took off his headphones, looked at Megumi and Nobara, and nodded toward the door, as if saying "let's go." And a few minutes later, they were at the mission site (an abandoned building).

You are that curse!