Wan Burial Ancient Ruins

The Ancient Ruins of Ten Thousand Burials is a place that everyone in the world of cultivation avoids. But it became the starting point of Chen Hao's revenge. What did the good-for-nothing boy whose family was wiped out pick up here? Why is it that even immortals and demons are afraid of the skills he practices? Under ten thousand burials, are they buried with dead bones, or are they the secrets of the entire world of cultivation?