📄️ 背景
* 1908：Tunguska explosion happened. Deep inside the main land of Russia, it was an incredible massive explosion. The Czar government was incapable to investigate such issue, so folk scholars were authorized to take part in the survey. A few years passed, all scholars involved lost contact with outside world suddenly one day.
📄️ 联合矿业集团
名称：联合矿业集团
📄️ 设定资料-晶元
名称：晶元