The Tyrant and the Princess

Tabitha, a young beautiful virgin, her village was conquered by the Demon king. He was called that because he was said to be old, ancient, and very evil. He was on a mission to destroy the human race.
In a world where humans are deformed by radiation poisoning. There was a group of humans so deformed they are called demons they are also cannibals they regularly seek out and hunt the superiors these are humans that remain normal after being exposed to radiation.
The world was thrown into the Stone Age. There was little technology; only the superiors knew how to build and access technology. They had a mutation that made them super smart. They also believe in peace; they want to integrate the deformed into their society. But this hope for the future became only a distant dream when Tabitha's village was destroyed by the tyrant demon king. She had beautiful dark skin, blonde hair, and hazel eyes. She was very tall; her mutation caused her to be able to hear the thoughts of others. And predict the future to some extent. Because of this, her people worshipped her as a goddess. One day, she was somehow stung by a poisonous insect and became ill, and no one could cure her. The people being distressed about their princess couldn't predict the impending attack because she had to be kept sedated due to the severe pain she was in.
The demon king scouting stumbled on their village and attacked them