In the neon- and rain-soaked "Eternal Night City", memories become commodities that can be extracted, tampered with, and traded. Lin Mo, a top "memory cleaner", makes a living by erasing the pain of others, but lives in his own forgotten past. When the mysterious woman Su Wan asked him to retrieve a "stolen" memory with a blank memory core, Lin Mo was involved in a conspiracy vortex led by the giant technology company "Deep Space Technology". Not only does he have to dive into the depths of other people's broken consciousness, but he also has to face the truth that he has been deliberately buried. In this sea of oblivion composed of data, every island of memory may become a tomb where he is buried.