[ Hentai XXX Manga ] Kansen 3 Shuto Houka 02

Four years have passed since the initial outbreak of the Unknown virus epidemic, and the frightening plague that ravaged Japan's Tohoku area has been reduced to a distant memory, owing to stringent quarantine measures and an efficient vaccination. However, the Unknown virus is not yet dead, and very soon, an unavoidable fate will descend upon Wataru Ayase and his family and friends, trapping them inside the "Hell on Earth" madhouse that was once their home city of Tokyo...