C6074 The Wall of Extreme Yin

And it was precisely this huge whirlpool that spouted out waves of extreme negative energy from the inside out.

This whirlpool was the legendary Tai Yin Wall.

The Tai Yin Wall and the Crimson Crow Heart represented the extreme yin and extreme yang of this world.

At the same time, the Tai Yin Wall and the Crimson Crow Heart were also the source of all yin and yang energy in this world