On that day, the city fell into an otherworldly realm.

The Old Ones have been resurrected. Suddenly, the city of Sapporo was thrust into the depths of hell. Kurusu Kitakagura and her friends were ambushed by grotesque, monstrous beings. Torn apart, violated, shredded, and devoured…

Amidst the carnage, Kurusu—the sole survivor—crawls out from a sea of blood and entrails, swearing a solemn oath in her heart. Until the revenge for her friends is complete… she will survive, no matter what.