"The First Blood in Dongguan": After two years of unjust imprisonment, the iron gate was reopened. Liang Xiaolong, the former king of soldiers, stepped into Dongguan, the city of desire, and just wanted to live in anonymity and live the rest of his life. However, when Lin Shiyao, the campus beauty of Dongguan City College, was drawn into the whirlpool of the underground world, the illusion of peace was instantly torn apart. From being outnumbered on the streets of night markets to deadly games deep in casinos, every time he punches, the legend of "The Return of the Soldier King" grows crazily in the city's undercurrent. This is not a simple revenge, but a man's journey of life and death in a fallen city, using blood and fire to regain his dignity and protect his loved ones. When all forces regard him as an "accident" that must be eliminated, Liang Xiaolong has only one choice - to let the entire city remember his rules in the name of "Dongguan's First Blood".