Zero Boundary Throne

A disgraced esports player, reviled by the entire internet, hides his identity and works as a网吧 (internet café) manager. No one knows that his 101% neural synchronization rate is humanity's last hope against an alien civilization. When the truth of "Star Remains Era" is revealed, the so-called esports competitions are merely a screening process for the apocalypse. This time, he will step over his enemies' corpses to ascend the Zero Boundary Throne and protect all of human civilization. — Description from novelcodex.org