C46 Challenge!

"Hmm?"

Upon hearing the question, Su Hai was taken aback, giving Su Ling a surprised glance before asking, "Ling Er, where did this pill come from?"

"My senior brother refined it for me," Su Ling replied succinctly.

"Dan Wuchen?"

Su Hai recalled what Su Yunshan had told him about Su Ling having an extraordinary master and a senior brother who was highly skilled in alchemy. So