Revenant Revenge

A lich named Revenant ruled over a no name end, but one day a red dragon attack him, and an army of human all over the world use this opportunity to deafet the lich. But it was the human that use the dragon so they can put a slave on the lich so he cannot regenerate on his phylactery as long the curse's on him. Many century pass and the curse break, the lich was free after all this year, but the world has really changed, the civilization has robot, cyborg, mech and not only them, even some monster evolve as partial cyborg. This is story of an old lich that found himself in a futuristic isekai world.