A high school student who slacks off in class by day, he is Shen Chang'an, the Highest Lamp-Bearer of the Qingzhou District Night-Suppression Department by night. An eighteen-year-old fifth-realm genius wielding a heavy tribulation-cloud spear, burning primal black flame, slaying evil cultivators, suppressing demonic entities, and pacifying demonic upheavals, he single-handedly protects hostages while sweeping through evil cultivator strongholds, his fifth-realm combat power suppressing the city's full of demons so they dare not raise their heads. Cultivators lurk secretly on campus, turbulent undercurrents surge beneath the urban underground, and the Black Swan organization presses closer step by step. The youth raises his spear to stand in the world, guarding a realm of mortal peace beneath the neon shadows.