Two Layers of Heavenly Evolution

In the Tianbao era, the Tang Dynasty stood at a turning point, shifting from prosperity to decline... Yet this cycle did not bring the An Lushan Rebellion! Instead, it brought a far more complete annihilation of humanity. The Prophecy of the Back pushes reappeared, and the Four Symbols Celestials were born to face the calamity! [Based on Real History + Fantasy Romance + Multiverse]

Master Li Sancai of the Azure Edge divined forty-nine hexagrams for his grandson, Li Ziqing, and every one foretold a dead end. Little did he know that among the number of Heaven's evolution, one path of survival had slipped away. It was a variable in the cycle of reincarnation, and the choice between Li Ziqing's beloved and his destiny. The Four Symbols Celestials gathered, the Jiuer Bureau joined forces with the seven great sects, and the powers of the Three Realms united... They would fight fate with a variable and save all living beings through supreme virtue. In the final years of the Tianbao era, who would rule the fate of the land?