The end of everyone was just the beginning… Returning home by train after a class trip, Teru Aoki takes a most frightening ride inside a mountain tunnel. When the train derails, nearly everyone aboard is killed. Amidst the bloody carnage, Teru discovers two survivors—but salvation is far from their grasp. As they try to dig out from the wreck in order to come up with a plan to stay alive, the lack of light and food, combined with the stench of death and decay, will lead one member of the group down a dark and demented path. And with sudden, violent earthquakes shaking the tunnel, escaping to the outside world may lead them to an even greater danger …

Won the 21st Kodansha Manga Award for general manga in 1997.