Lin Feng, the underground fighting champion, returns home after surviving five years of brutal death matches and inheriting the identity of the Dark Emperor of the Netherworld Hall. However, he discovers that his first love, Su Qianqian, has attached herself to the spoiled rich heir Xu Zhifeng, while his mother and younger sister are also being bullied by the Xu family. His childhood friend Qin Shiyu has quietly remained by his side all along. Possessing peerless medical skills and supreme martial arts abilities, Lin Feng defeats the Xu family, the Ye family, and other powerful forces. Along the way, he becomes entangled with the mature and alluring Chu Yunyan and her best friend Song Qingyao. To avenge his master's tragic death, Lin Feng confronts his traitorous senior brother Lu Haotian and the mastermind behind everything, Shen Wuchang, enduring several deadly battles. After finally avenging his master, Lin Feng puts down his weapons, opens Renxin Hall, and proposes to Qin Shiyu. Leaving behind the glory of the Dark Emperor, he returns to an ordinary, warm, and peaceful life.