Yuanyuan Era

In 2555, the silver-blue meteorite salvaged by the "Pioneer" carried unknown energy particles to assist Tustin, ushering in the catastrophe and rebirth of human civilization. After half a century of bloody turmoil, the biologist Yasuo refined the Yasuo Ring and transformed the violent energy into gentle energy. Humanity finally built the Central Holy Land in the sea of ​​​​stars to help the Tustin Era come.