In a future city where memories can be stored, edited and deleted, Lu Zhou, a top memory organizer, is an amnesiac with no past. He numbly processes the joys, sorrows and joys of others, like a ghost floating in a sea of data. Until one day, he glimpsed a familiar yet unfamiliar face in an encrypted memory fragment, and felt a heartache that was not his own. In order to pursue this echo, he embarked on a dangerous path, trying to salvage the truth sunk in the deep sea of oblivion. However, he is about to discover that what is more terrifying than losing his memory is remembering the self that should not be remembered.
