Y/n is a special grade sorcerer. Almost matched Satoru Gojo himself. Y/n is on one of their cursed spirit missions when they ran into Toji himself. He’s there because sensed something strong, which was Y/n. He didn’t even great himself, he turned into a blur of motion, fighting y/n fast, though y/n matched his pace with the same energy. They fought for a while until Toji realized they are basically the same. He catches feeling for y/n, getting obsessed. Especially y/n’s curvy features. It turns him on. He likes a good fight.