Why Am I The Hero?

The Demon King, an existence that dwells on the top of the food chain. Nobody can match his powers, except for a single person. A person that is the complete opposite of the demon king. A person with kindness, love and forgiveness. A hero, people's warrior. As the demon king's son, there weren't many things Ruk wanted to have but his world starts taking a turn for the worse when some people show up before him. "The Chosen One! You-you are the chosen one!" "....Nope, wrong guy!"