Primordial Era: The Steady Senior Brother, Tongtian is Going Crazy

Zhang Zhuo transmigrated to the prehistoric world, became a disciple of Tongtian, and became the eldest disciple of the Jie Sect. He also awakened a system; the longer he lived, the more rewards he received. Demonic god's legacy, the power of laws, chaotic treasures, Great Dao techniques… Zhang Zhuo's way to become stronger was simply to live! Thus, the most stable cultivator in the prehistoric world appeared. "What? The success rate of this breakthrough is only 90%?" "That's too risky. I'll just wait for a natural breakthrough!" Therefore, Zhang Zhuo's realm was exceptionally solid, invincible among his peers. "What? Master and junior brothers have all gone out to train, and I'm left alone to guard Jin'ao Island?" "Then I have to set up a formation within a formation!" Later, Tongtian returned, but couldn't find Jin'ao Island in the vast East Sea… And all of this began when the Three Immortals of Sanxiao had just transformed into human form and become Zhang Zhuo's junior sisters.