Wushuang, the young master of Wushuang City, carries the only Wushuang sword box that can be opened in a hundred years. Thirteen flying swords are hidden in it. Yunsuo, Qingshuang, Fengxiao... And even the Ming Dynasty Suzaku, two of the ten famous swords, are all the confidence for him to wield the sword.
However, a strange space crack suddenly appeared in the sky, dragging him and his box into a bizarre world. There are no rivers and lakes disputes here, but there are terrifying zombies that eat human blood; there are no overt and secret struggles in the realm of martial arts, but there are thousands of years of entanglement between the yin and yang realms.
When he first arrived, he met Ma Xiaoling, who was wearing a yellow trench coat and eyes as sharp as knives. One is a descendant of the exorcist dragon clan who upholds the ancestral precepts of the Ma family and takes it as his mission to eliminate zombies. The other is a swordsman from another world who carries an unparalleled sword box and has the ability to use swordsmanship to reach the gods. When the edge of the flying sword meets the fangs of the zombie, when the innocence of the boy collides with the coldness of the exorcist, two worlds that had no intersection are closely intertwined due to this unexpected time travel.
Faced with a group of zombies with strict hierarchies and strange powers, and faced with monsters and monsters in this world that are far beyond imagination, Wushuang will use the martial arts realm of the young singer Ge Xing as a basis, and activate thirteen flying swords with sword control techniques to carve a way out in this city where humans and ghosts coexist. Can he find a way to return to his homeland through protection and exploration? Can he witness the true peak of the Unparalleled Sword Box while fighting side by side with Ma Xiaoling, and achieve the name of the "Unparalleled Sword Immortal" across time and space? A legend of swords and zombies is slowly unfolding in the neon-lit urban night...