Synopsis
Continues the story of Kansen 3: Shuto Houkai
Adapted from the erotic game by Speed. Four years have passed since the first outbreak of the Unknown virus, and the devastating plague that once emptied the Tohoku region has faded into a distant memory, held in check by strict quarantine measures and a working vaccine. Yet the Unknown virus is far from gone, and before long, an inescapable calamity will descend upon Wataru Ayase, his family, and his friends, sealing them inside the "Hell on Earth" nightmare that was once their home city of Tokyo...
In this installment
Oogami Island, once a serene location covered in beautiful greenery, has descended into a realm of rampant debauchery. The contagion referred to as Unknown - Level 4 has spread widely. Three young women—Hyuuga Natsu, Ochi Akari, and Hanazawa Airi—become trapped inside a sports facility, where they face attacks from those who have been infected.
