Xiu Xian: Who Installed This System on Me?

The world here is too vast. All living beings are ups and downs. Dynasties rose and fell, and sects arose. In ancient times, there was a Taoist ancestor who chased thousands of tribes to determine the four seas. Later, there was a Taoist ancestor who cast Zhongzhou to establish the outline. Chen Yunsheng once traveled through time and entered this magnificent world of cultivating immortals...