The original anime adaptation of Corpse Party: Tortured Souls, a horror series based on the video game Corpse Party, was released. It introduced fans to the anime version of the story.
Sentai Filmworks licensed Corpse Party: Tortured Souls for English distribution, making the series accessible to a wider international audience.
Sentai Filmworks released the English dubbed and subtitled versions on DVD and Blu-ray, increasing the franchise's popularity outside Japan.
The original tragedy at Heavenly Host Elementary School where the students were murdered, initiating the curse of Sachiko Ever After.
The building becomes a paranormal hotspot, rumored to be haunted by the souls of the murdered children including Sachiko.
A group of high school students perform a friendship ceremony using a charm that accidentally transports them to the cursed Heavenly Host Elementary School in an alternate dimension.
One of the students, Naomi Nakashima, dies under mysterious and gruesome circumstances caused by the curse's influence.
The remaining students uncover the truth about the school's past and Sachiko's tragic demise, revealing the origins of the curse and the nature of their entrapment.
Some of the students manage to escape the haunted Heavenly Host Elementary School and return to their own world, although deeply scarred by their experiences.