The Bodyguard(特工爺爺)

Wu-Lin is the successor of an ancient, once powerful Chinese clan, the "Iron Feet." After the death of his master, Wu-Lin leaves his rural village for the City of Stone-Cold looking for his fellow apprentice Jiang Li. Along the way, he becomes the bodyguard of Fei-Fei, the daughter of Jia-Shan Li, the richest family in the city, and quickly gets drawn into a mob war in order to protect her.