C169 The institute!

"Xiao'er, you are still being too hasty right now. You have just refined a flawless pill and you already want to try the first tier. Aren't you being too impetuous? "Next, I will continue to control the success rate to more than sixty percent before being able to refine a single pill!" The Reincarnation Grandmaster said solemnly.

After carefully thinking about it