The first reason is that there are too many techniques in Taishu, and to cultivate the Qian Heaven Evil Body, not only evil energy is needed, one must also have profound achievements in the Taiji Qian Kun Dao. This initially filters out a large number of people.
The second reason is that after practical trials, it was found that Qin Nanxin could not practice temporarily.
Although she can simulate and repeatedly cultivate through arithmetic, barely mastering the method of transforming Qian Kun's energy into fluid molecules to protect herself, without a systematic side support, it consumes excessive Divine Sense, so much so that when she performs the Qian Heaven Evil Body, she can only stand still, and any movement could break the technique.
