In the center of the vast sea of consciousness, stands a lighthouse that collects the forgotten memories of the world. Lin Mo is the 734th lampkeeper. He sorts out the ownerless emotional fragments day after day. His life is as regular and lonely as a precision instrument. Until one day, a red memory that does not belong to any file breaks in. It is a girl smiling on a swing. This touch of red was like a key, beginning to pry open Lin Mo's dusty past and the meaning of his existence. Between the cold duty and the hot truth, he must make a choice - continue to be an unknown watcher, or risk being erased by the system, dive into the abyss of memory, and retrieve the name that may belong to him.
