Three hundred years after the "Great Rupture" disaster, the history of the Federation is like a tower built of lies. Yang Xue, a dull but clever young archaeologist, accidentally dug up a USB flash drive from the old world in a radioactive desert. This small "beacon" not only reveals the truth that the "Great Rupture" is a man-made disaster, but also hides her forgotten life experience, as well as an instruction from her father that spans three hundred years - to find and shut down the out-of-control "world engine" and correct the distorted timeline. Facing ubiquitous surveillance and internal suspicion in the Federation, Yang Xue must form an alliance with a mysterious boss with unknown motives and embark on a dangerous journey to the heart of the Federation. What she holds is the only key that can prevent the world from being completely rewritten, and the price she has to pay may be her own existence itself.
