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https://www.imdb.com/title/tt4970038/plotsummary
"Wu-Lin is not just a regular man from the rural village, he is also the Successor of an ancient, once powerful Chinese clan, the "Iron Feet". After the death of the clan master, Wu-Lin left the village and come to the City of Stone-cold to look for his fellow apprentice Jiang Li. He turn out become the bodyguard of Fei-Fei, the daugther of Jia-Shan Li, the richest family in the city. A clash of an unruly rich girl with a rugged and masculin bodyguard, sparks the flame of true love. Wu-Lin soon discovered that a group of mobster led by Jiang Li, attempts to kidnap Fei-Fei. To protect his love one, Wu-Lin forced to fight them alone. Brutally crushed, but Wu-Lin managed to survive, he took off his iron-shoes, and feel the adrenaline rush into his body again. Wu-Lin decided to face the group of mobsters once more, and he knows someone much bigger, stronger than Jiang Li is behind the evil plot"
Spoiler alert:
the true villain pulling the strings in the background is his father.
The main character has been wearing these iron shoes all his life to train his feet and once he takes them off his kick is even stronger than before.
Sound like Sanji's inspiration, no?
Most of it is covered by WCI's plot