Prehistoric: Become a Tongtian System at the Beginning

Traveling to a prehistoric world, unexpectedly encountering a ferocious time and space storm, Xu Ran found that he was integrated with the system! And it was bound to Tongtian on the eve of the Longhan Catastrophe! From then on, Tongtian, who had a tragic fate, sang all the way under the guidance of Xu Ran. Travel through the heavens and worlds, refine the origin of heaven, and become the supreme saint of the great avenue! Hongjun: Fellow Taoist Tongtian has great ambitions, but I can't match them! Yuan Shi: The separation of the family back then was the worst decision in my life! Tongtian: You don't know that as strong as me, life and death can be decided by that person's thoughts! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.