C364 First Investigated the Profound Codex(1)

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Four simple words appeared in Nangong Yu's mind. They were accompanied by extremely dense Heaven Earth Profound Qi that quietly floated. The Profound Qi showed Yin and Yang at the same time, merging together. It formed a diagram of Taiji, slowly rotating around each character.

Each stroke was like the various elemental forces in the heaven and earth. At this moment