Shu Han, a good-for-nothing with the worst aptitude and five spiritual roots, accidentally fishes a magical black jar out of the mud. It can infinitely duplicate heavenly treasures and earthly treasures! He initially thinks he can use it to quietly cultivate immortality while keeping a low profile within his sect. But to his horror, he discovers that the entire Longxuan Sect is actually a hellish demon lair where the demonic sect leader refines children into powerful pills! When his former brothers suffer a brutal fate, Shu Han cleverly devises a scheme to avenge them. Eventually, he perfects the art of keeping a low profile, using his black jar to crazily stockpile top-grade magical weapons and tens of thousands of talismans. With only the lowest Qi Refining cultivation, he crushes the advantage of higher realms and blasts a Foundation Establishment monster to pieces! After escaping the demonic lair, he rapidly advances in power and unexpectedly befriends an extremely tsundere female powerhouse at the Golden Core stage.