Yes, Gu Xinchao is preparing for Foundation Establishment.
Wait, hasn't he already reached Foundation Establishment?
One was his second Primordial Spirit achieving Foundation Establishment using the White Bone Grand Technique of the White Bone Dao Palace, and the other achieved Foundation Establishment using the Yin-Yang Retrograde Grand Technique of the Xuanhuang Sect. How could he possibly undergo a third Foundation Establishment?
Chapter 250