Precious-grade pills are extremely rare in the mortal world. For instance, the nearly lost Angong Niuhuang Pill, which can fetch hundreds of thousands per pill, is considered a precious-grade pill.
As for spirit-grade pills, they are basically nonexistent in the mortal world and can only be found among a few top martial cultivation families and top medical clans.
Jun Lingshan's willingness to produce three spirit-grade pills showed the utmost sincerity!
Chapter 83