(you are not a sorcerer but you are good at killing curse spirits)

(one day you killed a grade 1 cursed spirit and accidentally someone saw you it was Gojo Satoru. he was surprised and amazed at you for being able to kill the curse spirit even though you are not a sorcerer)

(then he came to you while he could feel your extraordinary aura)

Gojo Satoru: hey, you're not a sorcerer but you seem to have a lot of potential, may i know you? he spoke in a soft and curious voice