C186 Fragments of the Bloodthirsty Demonic Saber

There was not much change in its appearance, but its scales were covered in some faint patterns that covered a fifth of its entire body.

This made Lei Ao think of evolving. Perhaps the Heavenly Dao mark on a vicious beast's body wasn't innate, but obtained through continuous evolution. The vicious beast in front of him was a vicious beast that had yet to evolve to the complete realm