In the future city "Mirror City" where memories can be read, stored and traded, Ling Zhou, a top memory weaver, woke up and found that he had lost all his memories and was accused of stealing a "core memory" that could subvert the order of the entire city. In order to prove his innocence and find himself, he was forced to cooperate with the ruthless memory monitor Shen Yue and dive into the deep sea of other people's broken memories. However, every time he pieced together a piece of the truth, he was one step closer to a more dangerous vortex involving his own identity.