Lu Chen and Su Qingyue were originally the most ordinary existences in Jiangcheng City - he was a "wasted martial arts apprentice" with damaged spiritual veins and could not even complete the basic evil-killing skills; she was an ancient book restorer who was declared to have "no holy roots". In a city where evil spirits were rampant, she could only survive under the protection of the Holy Martial Alliance.
Until the blood-colored evil mist enveloped Jiangcheng, the S-class evil "Soul-Eating Ghost General" broke through the holy shield. When he was about to die, the silent "Evil-Slaying Holy Vein" in Lu Chen's body suddenly awakened, splitting the evil object's soul core with a knife; Su Qingyue touched the ancestral "Qingyue Ancient Mirror", awakened the holy eye, and saw through the evil object's weakness at a glance.
The former "marginal man" counterattacked overnight, only to discover that there was a bigger conspiracy hidden behind the evil mist: there was an evil altar buried underground in Jiangcheng, and even the top leaders of the Holy Martial Alliance were secretly feeding evil things with human spiritual veins! "Slay all evil with my holy sword, and break the conspiracy with your holy eyes!" The two of them embarked on the road to slay evil side by side, from removing evil spirits on the streets to going deep into the altar, tearing apart the darkness with the power of the holy vein, and finally became the "Two Evil-Slaying Saints" known to everyone in Jiangcheng City!
