Su Gai was a task in the costume martial arts movie Su Gai during Xianfeng period of Qing Dynasty. Su can has a wise and brave army commander who is good at using knives and arrows and has won the respect of the commander-in-chief and his subordinates, but he is weak in fame. He just wanted to create a unique martial art that can be told to future generations, but unfortunately he sacrificed his loved ones and paid a heavy price for his life. Su Can, who has been pursuing the highest realm of martial arts all his life, has only two things in his mind: one is to create a unique martial arts for future generations, and the other is to be with his beloved wife.

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Su Can has a happy family, and his wife and children have given him endless happiness. However, due to his righteous brother Yuan Lie's hatred of the previous generation and his playing with fate, he fell into an endless abyss. In other people's eyes, Su Can has become a tramp who looks crazy, getting as drunk as a fiddler all day and begging in the streets day and night. In fact, the wandering life did not dampen Su Can's desire to hone his martial arts. All along, he has been making unremitting efforts to create new martial arts and studying the erratic "drunken boxing". On the other side, he happened to meet Wu Shen, an imaginary enemy with superb martial arts and profound moral sense, and had an epiphany after repeated contests.