If it could be said that other cultivators need to refine Spiritual Qi that is as rebellious as wild lions, untamed horses, or even stubbornly defiant young girls.
Then the Spiritual Qi that Feng Qing'an introduces into his body is like an intelligent older sister, ripe as a honey peach; just a glance, a simple gesture, and she can strike various satisfying poses, making the interaction extremely comfortable and effortless, without any need to expend mental energy.
Because the Spiritual Qi that flowed into his body was so cooperative, Feng Qing'an did not feel any difficulty in refining Spiritual Qi. By the time he had reached the step of extracting the Spiritual Qi, after carefully inspecting it inside and out three times, he found no impurities that needed to be extracted.
As a result, what Feng Qing'an had to face was the final step: According to the "Six Yin Netherworld Immortal Scripture", he would convert these already refined and pure Spiritual Qi into Netherworld True Qi.
