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Fong Sai-yuk (or Fang Shiyu) is a semi-fictional Chinese martial artist and folk hero from Zhaoqing City, Guangdong Province of the Qing dynasty. Fong was also associated with Hung Hei-gun and the Five Elders of the Southern Shaolin Monastery. He was a disciple of Shaolin and his martial arts techniques were considered to have contributed to development of Hung Ga Kuen.