Su Han possessed the Devouring Heaven Demonic Qi, so he was extremely familiar with Demonic Qi. The pale, Yin-white Demonic Qi within Ning Feifan's body was of superior quality and immense power. It was not something an ordinary person could possess.
Since joining the Seven Stars Sect, Ning Feifan had only left its grounds this one time. Su Han quickly deduced the origin of this Yin-white Demonic Qi.
The Taiyin Demon Venerable... he's been corrupted by the Taiyin Demon Venerable!
Throughout the entire Seven Stars Sect, only Yaoguang Peak had a powerful Demon Lord suppressed beneath it. Since Ning Feifan had always lived on Yaoguang Peak, the Taiyin Demon Venerable was the most likely entity he could have encountered.
The Taiyin Demon Venerable's Demonic Qi was hidden so well that it had eluded even Su Han and Lei Ming. If not for Ning Feifan's bizarre behavior, Su Han might never have noticed it.
