C1903 Wind bell pavilion

After becoming Du Chen's disciple, Cheng Fei's pill refining skills had also grown. Strictly speaking, although Cheng Fei's talent in pill refining wasn't considered good, he was still able to improve in the middle.

If Cheng Fei was allowed to refine pills step by step, Cheng Fei would definitely improve.

This was because pill refining was not something that could be done in a day and a night