Xiao Zhan and Lin Ruoxi are originally "marginal people" in Qingyang City - he is a former martial arts genius with damaged martial arts, who makes a living by doing odd jobs and cannot even fully perform basic boxing skills; she is an apprentice in a medical school who is said to be "difficult to enter martial arts in life". In a city where dark warriors are rampant, she can only survive under the protection of the martial alliance.
Until the dark mist enveloped the whole city, the S-class dark warrior "Blood Shadow" broke through the protective wall. When he was about to die, Xiao Zhan's silent "Hegemonic Martial Veins" suddenly awakened, and smashed the dark warrior's protective aura with one punch; Lin Ruoxi held the ancestral "Qingxin Jade", awakened the healing martial arts, and dispersed the diffuse dark mist with one palm.
The former "abandoned son" counterattacked overnight, only to discover that there was a greater conspiracy hidden behind the dark mist: there was a dark altar buried underground in Qingyang City, and even the top brass of the Martial Alliance were secretly feeding dark creatures with human martial arts! "Use my domineering body to break the darkness, and use your healing to protect the common people!" The two of them embarked on the road to protect the city side by side, from slaying demons on the streets to going deep into the altar, tearing apart the darkness with the power of martial arts, and finally became the "Urban Dual Martial Lords" known to everyone in Qingyang City!
