I Am the Emperor of Another World in the City

Xiang Wen, the king of another world, almost died due to a defeat that destroyed his country and his family. After arriving on Earth by accident, he decided to form his own sect. Evil cult organization? If you dare to block my rise, kill. Alien monster? Anyone who dares to invade my territory will be killed. When I return to my own world, I, Xiang Wen, will no longer be the king. But I am the only emperor. Anyone who dares to stand in my way will be killed.