One Billion Years Later, I Became the Ancestor of Mankind

After traveling a billion years, he became the oldest ancestral spirit of mankind and obtained the human race development system. However, before he could be happy, Du Xuan was shocked to discover—— In this era where hundreds of millions of ethnic groups compete for hegemony and disasters continue to occur in various places, Due to unknown reasons, the human race has long been reduced to the bottom of the world, and is used as slaves and even livestock by various races. With an unyielding will, Du Xuan frantically developed the clan's culture and worked hard to restore the human race's former glory: Ding! You found a new tribesman and were rewarded with a god-level offensive secret technique. Ding! You defeated other ancestral spirits and were rewarded with a bottle of god-level spiritual essence. Ding! You conquered other tribes and were rewarded with a god-level talent. Ding! You established a human territory and were rewarded with a god-level defensive formation. Ding! You leveled a piece of wasteland and were rewarded with a god-level inheritance palace. … This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.