Gu Sheng-zhai, an artist in his early 30s, still lives with his mother, but he is suddenly shaken by the arrival of Yang Hui-zhen, a mysterious princess on the run. Yang brings Gu into her circle of protectors, including a nameless monk whose spiritual guidance transforms him into a valiant fighter.

China, year 1457. The Minister of Defense is executed, and his children are sentenced to exile by order of the tyrannical Tsao. Fearful of future revenge from the young people, Tsao sends cruel soldiers to murder them, but a brave group of swordsmen can change the course of the battle at the Dragon Inn.