In a cognitive disaster called "silent dissolution", human memories, emotions and even "self" are quietly erased and reduced to empty "echoers" wandering in past obsessions.
Gu Chuan, a genius neuroscientist, was drowned in the wave of oblivion in the tenth year of the apocalypse, just one step away from success.
When he opened his eyes, he found that he was reborn and returned to the week before the disaster broke out.
However, this gift from the future comes with the cruelest price - every time he uses key knowledge from the future, a memory belonging to his "now" will be randomly sacrificed.
He remembers the blueprint to save the world, but he may forget his mother's face; he can predict the next crisis point, but he may forget the name of his best friend.
Memory is his prison and his only weapon.
Before his self-awareness completely collapses, Gu Chuan must race against time, become the enemy of "forgetting" itself, and find the only hope for this world that is about to lose its memory.
This is a lonely war, and his enemy is his entire past that is disappearing.