I Am the European Emperor in the Wasteland

The earth, which was about to enter the interstellar world, was attacked by another civilization. Zhou Yang successfully entered the shelter by luck. Hundreds of years later, Zhou Yang woke up and shouldered the responsibility of finding other survivors and rebuilding the world. After waking up, he was bound by an unknown system and told that he had an inescapable enemy. How should Zhou Yang find survivors in the wasteland to rebuild the world and defeat the mysterious enemy? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.