This type of novel was called The Story of the United Nations. It was a fantasy novel by author Toby Fox, which told the story of a series of mysterious events and conspiracies that happened in the United Nations headquarters made up of various countries. The father of the male lead was a martial arts master. In order to protect his son and his country, he had to fight fiercely with the conspirators. There are many other characters in the novel, including United Nations officials, world leaders, and special forces, who face this global crisis together.