A millennial demonic cultivator originally intended to use the Myriad Soul Banner to slaughter an island and strengthen his magical treasure, but unexpectedly became tainted with a massive amount of Heavenly Dao merit. His treasure mutated and his cultivation plummeted, leaving only a Nascent Soul physical body with merely Qi Condensation strength. The dying him was saved by villagers plagued by sea bandits, and everyone mistook him for the benefactor who eliminated the bandits. Intending to silence them, the demonic ancestor was repeatedly forced to take action to protect the village, accepting mortal disciples and teaching them the art of banner refinement. He discovered the peerless mysterious iron used by the villagers to press salted vegetables and laid down a protective grand array. However, the merit golden light erupted by the grand array attracted the covetous desires of powerful figures from all sides, and the ancestor directly opened the nether ghost gate, swearing to leave behind all the enemy forces trying to seize the treasure.