Xian Gong System: Turn in Controllable Nuclear Fusion at the Beginning

Disaster strikes and a meteorite hits the earth. In the 6th year of the Dark Calendar, the Ice Age comes. Ye Lingtian traveled to the early days of the disaster and was bound to the Immortal System. By completing tasks, he obtained countless alien technologies that transcended the times. Controllable nuclear fusion, energy super warriors, super 3D printing machines, laser surround defense networks, nuclear-powered mecha production lines... With the help of countless alien technologies, Ye Lingtian led the Dragon Kingdom to easily avoid each terrible disaster. And it rose rapidly amidst global disasters and became the master of the world and even the world.