The world suddenly fell into a strange "ten-day cycle". People around the world will continue to experience the same scenes and events over and over again within a fixed ten-day period. At the beginning of each cycle, everyone's memories are reset. Only a handful of "awakened ones" can retain their memories and detect abnormalities, and the protagonist Lin Yu is one of them. In this chaotic final world, the mysterious "shadow forces" control various dangerous "cyclic events" in an attempt to plunge the world into eternal despair and destruction. Lin Yu shoulders the mission of breaking the cycle and saving the world.
