Alien Invasion, the System Sent Me a Base

System + Time Travel + Invincibility + Farming + Supporting Role Dihua Blue Star was invaded by aliens, and humans and monsters joined hands to fight against the enemy. Liu Fei, a young man who traveled from the earth, accidentally contracted the survivor system. From then on, he transformed the Blue Star environment, perfected his cultivation techniques, established a technological system, and finally created his own legend.