In the future city "Forgotten City" where memories can be extracted, traded and erased, Lin Ye, a top memory expert, makes a living by repairing and extracting other people's memories, but he cannot find his own lost past. He is like an island floating in the vast sea of oblivion. One day, a mysterious woman named Su Wei came with a broken music box and asked him to retrieve a stolen memory about the "Lighthouse". This seemingly ordinary business involved Lin Ye in a conspiracy vortex led by the giant technology company "Morpheus". When the pieces of the truth were pieced together one by one, Lin Ye discovered to his horror that what he was looking for was not only the client's memory, but also the only key to unlocking the mystery of his life experience.
