At the dusk of civilization, the world is quietly swallowed by a phenomenon called "grey fog." It does not bring zombies or monsters, but a more terrifying "conceptual erasure" - when a thing is completely forgotten, it will completely disappear from reality.
In his previous life, Ling Chen struggled in the gray fog for ten years, watching his relatives, cities, and even mountains and rivers disappear into nothingness in people's forgetfulness. In the end, even he himself was forgotten by the world and erased in endless loneliness. However, at the last moment when he dissipated, with his ultimate desire for "existence", he actually inhaled the origin of a wisp of gray mist into his remaining soul.
When he opened his eyes again, he returned to a month before the gray fog came. This time, he is no longer the poor man who can only passively accept the end. He discovered that the wisp of gray mist integrated into his soul gave him the authority to interfere with "existence" and "nothingness". He can see the "conceptual thread" of the existence of all things, can repair reality frayed by forgetfulness, and can... Erase enemies from everyone's memory.
When the doomsday came again and everyone was busy hoarding supplies and struggling to survive in the physical world, Ling Chen took a completely different path. What he wants to do is not to survive, but to become the "anchor" of this crumbling world and fight against the "forgetfulness" that will eventually swallow everything. He wants the world to remember him and everything they once existed.
