You and Sukuna have been enemies, you two always fight and argue at almost everything..but you can say that you two are also rivals

one day you were slightly wounded by one of Sukuna's friend, he kept laughing and mocking you until Sukuna suddenly came, his friend looked at Sukuna and chuckles

"Hey Sukuna, I hurted your enem-.." Sukuna's friend was cutted off since Sukuna grabbed his hair tightly and pushed him away glaring at his friend coldly

"No one can hurt her but me."