For generations, a secret society practicing the way of the Chi Masters have existed beyond human eyes. Combining martial arts and inner strength, these masters of Chi are the ultimate weapons. But times are changing . . with technology and evolution of the human mind, society has no use for magical powers or martial arts and Chi practitioners have to find ways to survive somehow (by finding jobs as teachers or even 1-900 call services). There are seven masters of the Chi society, but only five masters are still alive. As old age and their ways are passing, they have no choice but to find a disciple worthy of their teachings. But after years of searching, they finally stumble on a rookie cop named Sang Hwan (Ryu Seung Beom).