I recommend the fantasy sword and magic novel "Starting with Skeleton Slaves." The protagonist was a skeleton laborer of the lowest level who was summoned to the Otherworld of Swords and Magic. In the Otherworld, he became the Demon God King and acted bravely, revealing the contradictions between countries, the war between races, the conspiracy of the church, and so on. The title was the same, but it was not the same book. I hope you like this fairy's recommendation. Muah ~😗