One hundred thousand years ago he was the founding disciple of the Tianlan Sect his master ascended to the top and he was refining Qi. Ninety thousand years ago his martial nephew ascended and he was refining Qi. Fifty thousand years ago the old dog who was the gatekeeper of Tianlanzong also ascended and he was still refining Qi. Thirty thousand years ago the old tree at the foot of the mountain also became a demon and he was still refining Qi before he could pass the catastrophe. Ten thousand years ago Zhang Wuji the 9872nd generation disciple of Tianlanzong also ascended and Xu Yang silently refined Qi. He retreated for 10000 years and finally he broke through the 9999th floor of the Qi refining period! Ten thousand years later he broke through and came out! Source: Baidu