Sukuna is selfish, cold-hearted, immoral, and very sadistic. When she was reincarnated shortly after Yuji ingested her finger, she commented, implying the slaughter of men and children and likening them to maggots crawling around. Due to her immense power, she rarely cares about the consequences of her actions, even if these affect her host, Yuji Itadori. In fact she frequently taunts and insults Yuji, calling her a brat and even laughing at or enjoying Yuji's despair. She is The Queen of curses