They say parallel universes exist so that certain people can tear through time and space to travel between worlds. This is what we call transmigration. To transmigrate, one needs a point connecting the two worlds, which could be a strand of hair or some object.
Because her father influenced her from a young age, Ning Shu has always felt a special connection to the First Emperor, the famous figure in history. She respects, admires, and esteems him. What she does not know is that the jade her father left her is the very point connecting the two worlds. The jade links their fates and carries the summons of a parallel universe.