In the "Legacy City", an isolated island city surrounded by the "Sea of Forgotten", people's memories can be extracted, stored and traded. The top "memory restorer" Lin Mo spends his days repairing other people's broken pasts, but he is unable to piece together any fragments of his missing sister seven years ago. A mysterious commission draws him into a whirlpool of pursuit of "core memory", and he confronts the ruthless memory hunter "Shadow" in a foggy city. As fragments of the truth gradually emerged, Lin Mo discovered that the memory he was pursuing was not only related to his sister's whereabouts, but also to the foundation of the city's existence. In this forgotten sea, retrieving memories may require paying the price of forgetting everything.
