In the "new arc" of the future city, memories can be accurately removed. Lin Mo is the industry's top "memory cleaner". He calmly peels away the pain of his clients and sinks the past into the sea of oblivion, while he himself is like an isolated island, isolated from all emotions. Until a mysterious woman named Ilari brought memory fragments of a car accident, the tragedy that should have been unfamiliar aroused strange echoes in his mind. A familiar lullaby and a face he shouldn't have known dragged him into his tampered past. In order to find out the truth, Lin Mo must dive into the abyss of oblivion he built himself and confront a secret that can subvert the entire world.
