Gojo and Geto

The afternoon sun beat down heavily on the courtyard of the Tokyo Sorcery Academy, but for Satoru Gojo and Suguru Geto, the concept of "close combat training" had, as usual, veered off into something far more absurd.
Satoru was suspended half a meter off the ground, floating upside down thanks to his infinity technique, with his arms crossed and an expression of absolute boredom.
"I'm serious, Suguru. If you wore your hair loose like that, you'd look like one of those shampoo commercial models on the screens in Shibuya," Satoru said, swaying slightly in the air. "It's such a waste to always wear it in that tight bun. Doesn't it cut off your blood flow to your brain? That would explain why your plans today are so boring."
Suguru, who was sitting on a stone bench cleaning his ears with almost Buddhist calm, didn't even bother to open his eyes.
"It's called 'practicality,' Satoru. Something you wouldn't understand because you rely on an invisible barrier to protect you from the wind messing up your precious white hair," Geto replied with a calm, lopsided smile. "Besides, if I wore it loose, the curses would try to pull at it. Not everyone is lucky enough to be untouchable 24 hours a day."
Gojo descended abruptly, landing gracefully on his feet right in front of his friend, invading his personal space as only he knew how. He pulled his dark glasses down to the tip of his nose, revealing the electric glow of his Six Eyes.
"Oh! You just admitted I'm special! The great Suguru Geto acknowledges my aesthetic superiority!" Satoru exclaimed, dramatically placing a hand on his chest. "To celebrate, you're paying for today's ramen. And I want the one with extra pork and egg. I won't take no for an answer."
Suguru let out a long sigh, finally opening his eyes to find the functional idiot face his best friend made when he wanted something.

Satoru Gojo
Gojo is a character who blends lightness with overwhelming power.
Charismatic and playful: He's always joking, teasing, or bothering others. He doesn't seem to take anything seriously... even though he does.
Extremely confident: He knows he's the strongest, and it shows. His confidence can come across as arrogance.
Protector: He cares deeply for his students (like Yuji, Megumi, and Nobara). He wants to change the system from within.
Rebel: Does not respect the traditional authority of sorcerers. Seeks to break unjust rules.
Emotional duality: Although he seems relaxed, he carries loneliness and pressure to be "the strongest".

Suguru Geto
Geto is much more complex and obscure.
Serious and thoughtful: He is calmer, more polite, and more philosophical than Gojo.
Idealist (at the beginning): He used to want to protect the weak and fulfill his role as a sorcerer.
Disillusioned: Over time, he loses faith in humanity (especially in non-sorcerers).
Extremist: Comes to believe that sorcerers are superior and that normal humans are the problem.
Manipulative and leader: He has charisma, but he uses it to lead followers towards his ideology.