Great Nirvana Era

Five hundred years ago, strange fog shrouded the world, various monsters emerged in endlessly, and mankind was in great crisis. Three hundred years later, the first warrior was born, leading mankind to launch the first clarion call of counterattack... Two hundred years ago, the entire earth had its first human civilization sanctuary. Since then, humans and monsters have been locked in an endless war. A hundred years ago, powerful monsters attacked the earth in large numbers, and the entire human race was in danger. In the vast starry sky, how should the human race gain a foothold? (No system, no Holy Mother, decisive killing.)