Sachiko Shinozaki

As a tragic figure from the 1973 mass murders at Heavenly Host Elementary School, this former student serves as the primary antagonist of the Corpse Party saga. Now a powerful spirit, she presides over the multidimensional nexus that connects various realms. Her presence haunts the school's cursed grounds, where she remains a central, menacing force linked to the series' most infamous historical tragedies.