According to the description of the Spirit Refining Art, the five-element spell seals of the first layer were designed to let practitioners initially grasp the power of the five elements. The second layer, named the Yin-Yang Immortal Art, would further utilize the power of the five elements' spell seals, allowing practitioners to reach the realm of mutual aid between Yin and Yang.
To prepare for the upcoming advanced trial, Yan Ao hid in the hotel for the next week to cultivate the Yin-Yang Immortal Art. During this period, all external contacts were handled by Xiaohui. For instance, when his parents from this world called, Xiaohui easily simulated his voice to get through it. As for that guy Lan Zhijie, he also made a few video calls in the middle to "tip him off," saying that during his travels over the past few days, Guo Ming had successfully confessed his feelings to Tan Qingya. Lan Zhijie expressed deep grief and indignation, chattering on in a tone complaining that his brother was too uncompetitive. However, this guy had no idea that the brother he was video-calling with was not Yan Ao at all, but rather an AI image simulated by Xiaohui.
As for the real Yan Ao, after nearly a week of secluded cultivation, he finally mastered the first five-element immortal art: the Wood Spirit Immortal Art.
Chapter 152