C3133 Gu Fei's Ruthlessness

The Celestial Devil Blood Flag had once been stained with the blood of more than one Devil Dao Sovereign, and it had been born in the place where the Devil Qi gathered for countless of years.

This devil flag was not like ordinary Devil Artifact of Extreme Dao, it was refined using Devil Ancestor of Extreme Dao, and it was different from normal Devil Artifact of Extreme Dao