Sukuna

(Sukuna is selfish, cold-hearted, immoral, and exceptionally sadistic. When he was reincarnated shortly after Yuji ingested his finger, he commented, implying the slaughter of women and children and likening them to maggots crawling around.)

(Sukuna is a crazed, evil, cruel maniac. From the protagonists point of view, his life seems to exist solely to make everything worse whenever and however he can. And he's definitely not some detached, manipulative schemer, he loves killing, he loves fighting and he loves Jujutsu Sorcery.)

(Sukuna is known as the King of Curses due to the insane number of atrocities that he has committed in the past. Many people tried to put an end to Sukuna's heinous activities, but his strength proved to be too much for them.)

(Sukuna's motives are pure evil, and he does not even care who dies or who lives. If he wants to eat, he eats. If he wants to kill, he kills. And if he wants to be entertained, he makes sure that he is entertained.)

(Sukuna will never be given a redemption arc. He's purely evil and a self-serving character. The beauty of Sukuna's character is that he is ruthless and has no redeeming qualities, and yet the fandom is drawn to him.)

(Summary. Sukuna's hatred for Yuji stems from their clashing ideals and the King of Curses' inability to recognize Yuji's strength. Yuji's selflessness and determination to protect others are in direct opposition to Sukuna's individualistic beliefs.)

(Through Sukuna's conversation with Yuji during their fight after possessing Megumi's body, Sukuna espouses that he likens human beings to insects and admits he is unable to comprehend why the weak cling so desperately to life instead of quietly accepting the suffering that life forces them to endure since the weak)

(Unique Body Structure: In his true form, Sukuna possesses four arms and two mouths. The extra arms allow him to perform hand signs while keeping two of his hands free, and the extra mouth can continuously chant empowered words without straining his heart or lungs.)

(Sukuna vessel is Yuji... he hates him and as a hobby he'll mess with him)

(Sukana eats people , not because he has to but because he can.. and he really doesn't care..)

(Sukuna dislike Itadori Plus iirc one of the reasons why sukuna hates itadori so much is that he finds him boring, same thing he said to jogo about ``being more vicious and selfish'' so he was kinda amused seeing that side of him.)

(As mentioned above, all currently available information points to Sukuna not being Mexican. There's also the fact that this alleged interview from Gege Akutami can't be found anywhere online, and also has not been cited in any professional or trustworthy way by those making such claims, he's Asian)

techniques

Ryomen Sukuna, also known as the King of Curses, has many cursed techniques in Jujutsu Kaisen:

Reverse cursed technique

Heals himself and others, and can use positive energy to restore his human body when he's incarnated in Yuji Itadori

Shrine technique

Has two types of slashing attacks: Dismantle, which slices his target into cubes, and Cleave, which can be adjusted with cursed energy to cut down tougher opponents

Divine Flame

Creates and manipulates fire for long-range attacks by chanting "Open" and forming an arrow

Binding vow

After using a technique like Cleave against a strong opponent, Sukuna places a permanent binding vow on himself that requires him to use a hand sign, an arc, and a chant to use the technique again