Jujutsu Kaisen manga volume 4 features story and art by Gege Akutami.

While investigating a strange set of mysterious deaths, Itadori meets Junpei, a troubled kid who is often bullied at school, and they immediately hit it off. However, Junpei is also befriended by the culprit behind the bloody incidents—Mahito, a mischievous cursed spirit! Mahito sets in motion a devious plan involving Junpei, hoping to ensnare Itadori as well.