On the surface of modern cities is an ordinary technological society, where ordinary people live and work in peace and contentment. There is an unknown extraordinary world hidden at the bottom: it is divided into five major systems: the ancient martial arts world, the supernatural world, the metaphysical and feng shui world, the hidden sect, and the underground dark forces.
There are strict levels of hierarchy in the extraordinary world: warrior, martial artist, great martial artist, master, great master, innate, king, and saint. People with superpowers are divided into eight levels: E, D, C, B, A, S, SS, and SSS. The world recognizes the SSS level as the pinnacle of the world, a rare one that can be encountered in a hundred years, and can dominate anywhere.
A hundred years ago, there were countless casualties in the extraordinary war. The major forces signed treaties to hide the extraordinary world and not interfere with the secular world at will. Ordinary people would never know the existence of the extraordinary throughout their lives.
