If one's strength rose several levels in an instant, it was very likely to become unstable. Of course, with enough heavenly treasures to nourish and regulate it, there would not be any major problems.
Under Ning Xiyao's control, her strength began to rise steadily. She quickly broke through to Six-star Dou Ling, but it was not over yet. Supported by the immense energy of the Earth Core Body Tempering Milk, Ning Xiyao's advancement continued.
It was not only the Earth Core Body Tempering Milk, but also the Fifth-grade Pill Xiao Shuang had just taken out. In a single day, Ning Xiyao's strength reached the peak of Eight-star Dou Ling. She was only one step away from Nine-star Dou Ling.
Unfortunately, Ning Xiyao did not manage to break through to Nine-star Dou Ling in one go. Though she very much wanted to, she could not do it.
After reaching the peak of Eight-star Dou Ling, the energy in the pool and the medicinal strength of the pill had already been exhausted. There was simply not enough left to support her continued cultivation.
Left with no choice, Ning Xiyao stood up from the pool, got dressed, and walked over to Xiao Shuang. Her voice was somewhat cheerful as she said, "Teacher, my cultivation is finished. My strength has risen from Six-star Dou Ling to the peak of Eight-star Dou Ling."
Hearing this, Xiao Shuang nodded slightly. "Very good. The Earth Core Body Tempering Milk's greater purpose is to pave the way for your breakthrough to Dou Wang. Though you have not broken through to Nine-star Dou Ling now, you will not encounter much difficulty in future advancements."
After saying that, Xiao Shuang turned to Ning Zhiyan. "Alright, you're next."
Then, Xiao Shuang inspected the pool. The medicinal herbs within were still effective;