When a thief is on the loose, a clumsy, naive policeman, Sang-hwan runs after him, but Eui-jin, a martial arts specialist, captures the criminal and leaves Sang-hwan severely injured. She brings Sang-hwan to her home, where the six Masters of Tao heal him and believe that he has a powerful energy. Sang-hwan begins his training to ascend to a Maruchi, while the evil and ambitious Heuk-woon is accidentally released from his imprisonment and is in search for a key that would permit him to dominate the world. Sang-hwan and Eui-jin are the only and last hope to mankind.
