Pretending to Be a Demon King to Improve the Hero's Record?

When I was released from prison, I unexpectedly became the public enemy of the empire and the demon king despised by everyone. Now, as a fraudster, I will pay for all my sins. The supreme brave man has been waiting at the guillotine for a long time. People vented their resentment and smashed rotten tomatoes and rotten eggs on the table. But I don't care. Because I am the executioner. "Use your head to apologize, you hypocritical brave man who deceived the world!"