Zhenyuanzi believed that by hiding within Tianpeng's mind and occupying a space there, he would go undetected. Indeed, Jin Chanzi and Jinzha, among others, discovered nothing out of the ordinary. But Sha Chen did.
With Sha Chen's current strength, it was impossible for Zhenyuanzi to deceive him. After all, Sha Chen's Primordial Spirit had been enhanced by the Nine Nether Purple Orchid and had already reached perfection, achieving the Establishment of Primeval Chaos. Compared to Zhenyuanzi, he was not far behind. And Zhenyuanzi had made a huge mistake by hiding within Tianpeng's mind and communicating with him.
