C302 You Would Know after Smelling It

"I took a whiff, and I just knew..."

Qin Feng spoke with earnest sincerity.

"Smell... took a whiff?!"

Yao Wangzhong's entire being was struck with disbelief upon hearing this.

Was this guy some kind of demon?

He had been refining pills for ages, handling countless pills, yet he had never been confident enough to discern the cause of a failure simply by smelling the pill's aura