An eerie fog quietly enveloped the globe, followed by a series of “rule-based ghost stories” that defied all reason. Every country received a warning from an unknown entity: the rules have descended, and anyone who breaks them will die. To face this unprecedented crisis, nations selected “Chosen Ones” to enter the regions under the rules' influence and search for a way to break them.
Meanwhile, the outside world was far from united. Some financial groups and radical organizations sought to profit from the crisis. They secretly bought off informants to feed false instructions to the “Chosen Ones” entering the danger zones, hoping to seize the mysterious power that might lie behind the rules first, heedless of the possibility that this could bring about the destruction of the entire world. And... how can this global crisis be overcome?
