Nine rebirths and nine deaths? Just what sort of cultivation technique did this lass practice for it to have such a harsh requirement?

“Hehe, Big Brother Yun, why are you looking at me?” Yue Weiwei raised her head and gave Lin Yun a smile. “Hurry up and cultivate. If you delay, you might not be able to succeed. You might’ve broken your cultivation technique, but it hasn’t been that long. There will be some of it that’s remaining in your body and this Yin-Yang Reversal Array ...