In order to save his seriously ill mother, Chen Tieshan sold medicine in the night market to survive, but due to a street fight, he was involved in the abyss of underground black boxing. The mute younger brother Ah Qi secretly records the schedule, retired boxer Su Xiaoman secretly teaches him skills, counterfeit drug dealer Bai Gu fakes drug tests for him, and black boxing trader Han Xiao has already set his sights on this untamed beast. When the truth was revealed, his mother's medical expenses actually came from every bloody battle he fought - he was not winning the game, but exchanging his life for his life. And the 'Battle of the World's King' at the top of the world will soon become the ultimate reckoning between him and his enemies, conscience and sin.
