There is a set of shots, where the male protagonist's whole body is tied up, and even during the break, he must maintain the appearance of being tied up with a rope. Wearing foul-smelling clothes, hands tied up with ropes and hung in the air, being splashed with cold water many times, and finally buried in a 1-meter-deep burrow, it is really a hell-like experience. There was also a total of 100 tons of water continuously washed by a total of 100 tons of water for two consecutive weeks, fighting scenes in the rain, etc., which was the most arduous filming process
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The protagonist Sun Woo was severely punished for violating the orders of the triad leader. When filming the scene where Sun Woo was beaten by gangsters, Sun Woo was soaked and endured the biting cold in the dark night. He was besieged and beaten by 20 gangsters, leaving him scarred
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