Demons Coexist

I originally wanted to be an ordinary person and live a peaceful life, but later I found out that the owner of this body had long since died. Not for a moment, in order to survive and become a cultivator, After tens of thousands of years of fighting between demons and tens of thousands of people, under his step-by-step planning, he became the most terrifying demon in this world. Since this world cannot organize war, then I will be your common enemy. As a pretentious person, how could I accept the path arranged by others?