Jujutsu Kaisen, Vol. 0

 * Prequel to the exorcist adventure * 

Yuta Okkotsu is a nervous high school student who is suffering from a serious problem—his childhood friend Rika has turned into a cursed spirit and won't leave him alone. Since Rika is no ordinary cursed spirit, his plight is noticed by Satoru Gojo, a teacher at Jujutsu High, a school where fledgling exorcists learn how to combat curses. Gojo convinces Yuta to enroll, but can he learn enough in time to confront the cursed spirit that haunts him?