Primordial Chaos from the Start: The Three Pure Ones Are All My Dao Companions, and Hongjun Is Losing It

Modern-day Su Tang, an eighteen-year-old fan of god-tier mythology, accidentally steps into empty air while walking and transmigrates into the Primordial World, landing on and knocking out the Three Pure Ones. She also gets bound to a sign-in System called the Great Dao. The beginner's gift turns out to be a life-and-death Dao-companion contract binding her to the Three Pure Ones. To stay alive, Su Tang and the Three Pure Ones begin a game of chase: she runs, they pursue. As they chase and flee, the hidden secrets of the Primordial World are gradually revealed. What will become of the four of them in the end?