Darkmoon King

Tang Hao, who was summoned to another world by the orc shaman, was forced to become a substitute for the prince of the Kingdom of Enaid. In order to survive, he had to complete the orc shaman's task of overthrowing Middle-earth and become the new king. However, the prince he replaced was an uneducated playboy, the most hated of the four pests, and the heir least liked by the king. In order to ascend to the throne, how should he reverse the situation?