Chapter 639 Heavenly Demon Armor

"Rumble, rumble, rumble." Above the sea of blood, massive thunderbolts continually spread, with ethereal Thunder Dragons forming in mid-air, and surges of fluctuation, which were violent to the extreme, also kept sweeping out. This was the first time Du Fei had fully deployed the power of the Heavenly Thunder Pill, and at this moment, this Heavenly Thunder Pill, which had existed in the world for an unknown number of years, displayed its initial prominence in Du Fei's hands.