When the Golden King killed the Black Robed King, the blockade on the Golden Secret Realm was lifted, and now, with the Golden Key, one could freely enter and exit.
The Golden King looked grim; the magic-contaminated gold had been taken out of the secret realm, but the magical contamination within it remained.
If the magical contamination within the secret realm couldn't be reduced, it would accumulate more and more, eventually affecting the Purple Gold Vein.
The Golden King suddenly realized that the attack by the Demon God Sect was not aimed at the contestants but at the Purple Gold Vein within the Golden Secret Realm, intending to contaminate it.
The Purple Gold Vein, highly scarce, was formed from the fall of the Purple Gold Dragon, famed among the Dragon Race as a 'money printer.' It had the ability to absorb gold and produce dragon-patterned purple gold.
