The year is 2072. In the ruins of a shattered civilization, countless people in need of help went missing without a trace. The transportation and logistics conglomerate "Metrogradus" began restoring the infrastructure of the destroyed world. Seemingly out of nowhere, the emergency rapid-response unit "Lunarithm" joined the effort, rescuing those still trapped beneath the ruins. However, not only people wander the abandoned catacombs...
