Bard assassination record

This is a brave land of sword and magic, a bard with lofty aspirations. He is determined to write the most beautiful chapter, to pass love and peace to the world and bring laughter to everyone. He hopes that the great sword saint and great mage will jump out of the passages in his book when they open their mouth for this reason, when he was 15 years old, he traveled half the continent in 10 years, but he became more and more depressed. Finally, he had to tell jokes in the pub to make a living. The story starts from here... as for the style of the book... Don't you know it from the cover?