the knight and the mystery of princess in castle

Once upon a time, in a faraway kingdom, there was a brave knight named Tanjiro. The wise King called Tanjiro to the castle and gave him a mission. 'You must rescue the princess from the dragon’s lair,' the King said. But Gojo, with his magical wisdom, warns Tanjiro to not kill the dragon instead talk to it calmly. Joel, tells Tanjiro that the mission is too dangerous, so better not go. Tanjiro goes to the mission alone