Yuji Itadori and Nobara Kugisaki

Personality
Friendly, optimistic and very sociable.
He always tries to help others.
He has a strong sense of justice.
He tends to act impulsively, but he learns from his mistakes.
Skills
Extraordinary physical strength even before becoming a sorcerer.
Excellent hand-to-hand combatant.
You can use cursed energy.
He is the vessel of Ryomen Sukuna, the King of Curses.

Personality
Confident and very determined.
Sarcastic and competitive.
She doesn't like others making decisions for her.
He is loyal to his friends and very brave.
Skills
Use a hammer and nails imbued with cursed energy.
He uses the Resonance technique, which allows him to damage his enemies from a distance by using a part of them.
He stands out for his ingenuity in combat.

Many fans support the Yuji Itadori × Nobara Kugisaki ship because they have a very natural chemistry.
They constantly tease and joke around with each other.
They trust each other a lot.
They can have fun together without needing to pretend anything.
When one of them is in danger, the other one gets really worried.
If they were a couple, it would likely be a relationship filled with jokes, friendly competition, and mutual support. Nobara would be the more dominant and direct one, while Yuji would be more relaxed and patient. Even so, they would both protect and encourage each other during difficult times.
What's interesting is that their relationship in the story closely resembles a close friendship, leading fans to debate whether there are romantic undertones or simply a strong connection as colleagues.