C4903 Explain to Me

Jin Xiao's words enlightened everyone.

It turned out that this was how the Nirvana Blood Sea was formed.

Between the heavens and the earth, the Baleful Blood Qi was the Qi of Extreme Yin.

On the ancient battlefield, in order to compete for the Nirvana Ocean, the energy of the Nirvana Ocean was condensed from the purest Yin and Yang Qi