Sorcerer Grade is a significant detail in Jujutsu Kaisen. From a lore standpoint, sorcerer grades help ensure that jujutsu sorcerers get assigned to missions proportionate to their skill level, thus increasing an exorcism's success rate. Regarding storytelling, sorcerer grades relay Jujutsu Kaisen's characters' skills in tangible ways - immediately establishing stakes depending on the cursed spirit they're fighting.