15-Year-old Yang Chenxi lost her only relative in the world. She was left alone and chose to commit suicide. After her death, she met a man holding a life book and calling himself Bai Wuchang code 0023. The man told her that as long as she completed the tasks assigned by the life book and accumulated enough points, she could go to heaven to reunite with her family. In order to see her deceased mother, Yang Chenxi and 0023 embarked on a mission through time and space.
