C820 Decoction for discerning

The white crane stuffed the little jade bottle into his hands, causing Tang Yijun to wake up halfway in the blink of an eye. Poison? "

"No, it's not a poison, it's a knockout drug for cultivators. If ordinary people consume it, it will have no effect, but if cultivators consume it, their Zhenqi will become stagnant for a few breaths' time and their qi will become chaotic