Prehistoric: the Thirteen of the Witch Clan, Refining Gu, Refining God and Refining Heaven

The way of Gu can't wait for the elegant hall! But when the countless Gu insects sweep across and wreak havoc, the world will become silent! Bloodthirsty Gu, Soul-devouring Gu, Lust Gu, Dao Gu... Everything in the world can be cultivated with Gu, and the gods of the ancient world will change their color after hearing the Gu! … Travel through the prehistoric times and become the thirteen ancestral witches of the witch clan. The great road is Gu, and they are one and the same! Zhu Rong: It's incredible that a mere small insect can break the body of an ancestor witch! Tongtian: Why are there so many pits on the Zhuxian Sword? Don't ask, if you ask, you will be ruined by Shisan's Gu! Lao Tzu: Let me declare first that I have definitely not fallen prey to the lust poison. This is how the Yin and Yang Dao is cultivated! Hongjun: An odd number, an inverse number, the general trend cannot be changed, thirteen, you are so presumptuous! Tiandao: It seems like there are insects crawling on your body? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.