On the isolated "Memory Atoll", Archivist No. 734 Ling Zhou sneaks into strangers' memory fragments day after day to archive them. He has no past, just a cold set of rules and endless work. However, a recurring smile belonging to a woman in a white dress was like a crack, tearing open his numb reality. In order to trace the source of this smile, Ling Zhou began to secretly defy the supreme law of the atoll, trying to salvage his own identity in the vast sea of abandoned memories. He doesn't know that every taboo exploration brings him one step closer to a truth that can overturn the entire island. Under the forgotten deep sea, a giant beast is slowly awakening.
