It was impossible!
In reality, You Hui's current body was simply unable to withstand the rampaging spiritual energy of a level-nine great spiritual cultivator.
The burning spiritual energy wantonly tore through the meridians in his body.
Did he think that it would all end after the drug's effects went away?
He would be facing one of two consequences after the effects of such a drug that forcibly raised one's cultivation went away.
One, if he did not get a highly-skilled physician to treat his meridians that got torn from the rampaging spiritual energy with acupuncture, he would basically waste away his life like this. He would not even be able to retain his spiritual meridians.
Two, if he lost control of the surging spiritual energy in his body during this time, he might possibly face the pitiful end of exploding to death from the chaotic spiritual energy.
But would Qiao Mu tell him all this?
