Wanjia Qingchu Jihua! Dang Yi Bian Jianglin Renjian

The doomsday prophecy has come true. As a dark star descends upon the world, Earth is transformed into a deadly apocalyptic game. All of humanity has been reduced to mere NPCs, helpless fodder for the slaughter of otherworldly Players.
As chaos reigns and Players run rampant, mankind faces utter despair. But then, a young man named Yun Qi awakens a unique hidden class, granting him the one power no one else has: the ability to counter-kill the Players.
And so, with Earth as the ultimate battlefield, the great confrontation between the planet's native NPCs and the invading Players has officially begun.

(Source: Tencent, translated)