The Era of Universal Systems: I Became a System Hunter

[All Riddlers + no clear main line + decisive killing + no depressing plot + relaxed and funny + doomsday + wasteland + film and television + games + multi-element stitching + dual world perspectives + cool writing + not necessarily happy + not abusing the main character + occasionally abusing + decisive killing + occasionally not too decisive] Human civilization is developing rapidly in an explosive manner, but we didn't expect to be targeted because of it. Systems are constantly emerging around the world, and everyone is a "protagonist." Civilization seems to be grasped by a pair of invisible hands, always stagnant. Strange, even unknown creatures descended on a large area. It completely changed the destiny of mankind. Under such absurd operation, the world without rules has experienced hundreds of destructions and rebirths in just four years. In which year, mankind sent its last cry to the universe. The reply I got was... [Systematic breeding of humans, science withdraws from the earth]