In the future city "Floating City" where memories can be extracted, stored and traded, Lin Mo, a top memory restorer, makes a living by repairing other people's broken memories, but he knows nothing about his past before he was eight years old. A mysterious commission broke his peaceful life - the client Xiao Lan claimed that a core memory of "Melody" was stolen, and an underground organization called "Dream Weaver" was involved behind this. In the process of pursuing the truth, Lin Mo was horrified to find that the stolen melody resonated strangely with his blank childhood memories. Every fragment of other people's memories may be a map to piece together his own puzzle, leading him to an abyss that can subvert the entire order of the floating city.