After Signing in Tianlao for Three Hundred Years, I Am Invincible in the World

He traveled through time and became the crown prince of the Daqian Dynasty, but because he let go of the demon sect's enchantress, he was deposed and thrown into a prison. I originally thought that I could only spend the rest of my life in a prison. I didn't expect that as long as I stay in the prison, I can grow up obscenely. "Your Highness, your brother needs support outside." Liu Fan cut out the crisis with a sword. "Your Highness, a sect has come to provoke us and needs support." Liu Fan punched out and the crisis was resolved. "Your Highness, someone wants to rebel and needs support." Liu Fan wrote a word to suppress the powerful enemy. "Your Highness..." … Just when Liu Fan thought that the peaceful life in Tianlao would continue, until one day, he accidentally released the demon witch from Tianlao and led his troops to attack the Daqian Dynasty, just to rescue him from Tianlao. Liu Fan, who is invincible in the world, looked strange: "I am already invincible, and I still need you to save me?"