Among the human countries in the Tian Xuan Land, from what his teacher Tan Zhongchi had told him, an Upper Stage Empire were the highest existence. They were supreme powerhouses headed by Perfect Stage Warriors of the Spiritual Martial Force.
Although the Tian Xuan Land was as vast as the open sea, in the end, human countries viewed them as the peak.
It was not strange for the disciples of the Nine Palace Faction to act unreasonably as they had extraordinary backgrounds. Although it was somewhat suspicious for elite warriors from the Upper Stage Empires to come into a Middle Stage Empire, they still acted with tyrannical behaviour. It was apparent that they were used to acting like this and did not put a Middle Stage Empire in the eyes.