Worldview

從 5000 年前天外隕石墜落，到三族殖民凍土、大戰爭、簽下和平條約起算「開元」——啟源世界一萬年的編年史。

目前已知的世界由 4 塊大陸構成：中央的聖多拉、西方的曙光、東北的惡土，以及橫亙整個南半部、極寒而致命的凍土大陸。

The dead-white land at the very top of the map. The Net has marked it a 'no-data zone' for 80 years, and no one asked twice.

The calendar used in the present era of the serial. Kaiyuan Year 1010—it all began with one erroneous message in the small hours of that year.