The Strongest Ancestor in History

Bei Changsheng traveled to the world of cultivating immortals, and after traveling through, he also obtained the system. He did not have to risk his life to enter the secret realm and fight for his life with various geniuses, but he could obtain the supreme destiny. Then, under the guidance of the system, in order to avoid the catastrophe, he dug a grave and buried himself in it. Thirty thousand years later, His descendants made a decision that went against their ancestors when the sect was in crisis! Dig Bei Changsheng out of the graveyard!