Here's how the author's blog describes it at What a Horrible Night to Have a Curse:
Welcome to the home of the Flying Swordsmen Role Playing Game. Flying Swordsmen is a game of fantasy martial arts, where characters use swords, fists, spells, and more to battle other martial artists and monsters, and seek out new techniques or magic to improve their martial skill.
Players take on the role of a Fighter, Wizard, Shaman or Thief, and can customize their martial arts abilities as they advance in level. The Stunt system allows players to create the sorts of wild and crazy abilities and moves seen in Wuxia (fantasy martial arts) movies and comics.
Alright, I guess it even covers the more recent martial arts flicks, but I still love my poorly dubbed ones from childhood ;)
If you are comfortable with OSR style rules, this should be an easy fit for you. The stunt dice even remind me a bit of Mighty Deeds of Arms from the DCC RPG.