C2490 A Single Operation Is as Fierce as a Tiger

Gu Xuan was Supreme Pill Monarch of All Ages, who was personally certified by the Burning Heaven Realm and Heavenly Dao.

And this was more than a hundred years ago.

Over these years, even though Gu Xuan's Pill Dao wasn't as heaven-defying as the increase in his cultivation level, he was still improving at all times.

Now, even if Gu Xuan wanted to break through to Pill Saint's realm