Three men have died under similar circumstances from a cursed spirit. Investigators discover the victims all attended the same middle school, so Itadori, Fushiguro, and Kugisaki are dispatched to investigate. Once they arrive, they learn it was Fushiguro's old middle school. There they learn that the victims were all found unconscious beneath Yasohachi Bridge, a local haunted location. They also learn that Fushiguro's older sister, Tsumiki, is caught up in this incident as well--
It's impossible to constantly keep a domain 
imbued with a technique deployed forever.
.من المستحيل إبقاء مجال مشبّع بتقنية ما مفعّلًا للأبد
Es ist unmöglich, eine Sphäre mit einer
Fluchtechnik ewig aufrechtzuerhalten.
Es imposible mantener un Dominio
Es imposible mantener un Dominio
On ne peut pas
maintenir indéfiniment
È impossibile mantenere attivo in eterno
É impossível manter para sempre
um domínio com um feitiço imbuído.
Невозможно вечно поддерживать
территорию, где действует твоя техника.