Alcohol.
Dugu Wu couldn't help but think again of the night he and Feng Bailing celebrated their wedding, the night he got drunk.
Dugu Wu always had a good tolerance for alcohol and had never gotten drunk before, but that time he truly did, almost losing consciousness, which was very rare. Dugu Wu recalled afterwards that it was all because of the alcohol Feng Bailing gave him.
That alcohol was very strong. (Feng Bailing: medicinal disinfectant alcohol, take note)
Feng Bailing often had many strange things in her possession; her medical skills, and the alcohol she sold at the Zuixian Inn, Dugu Wu had never tried.
Perhaps this time when Feng Bailing returned, he would ask her to properly "teach" him about the alcohol.
Dugu Wu was thinking about this when Hong Xuan and Feng Luochen came down from the mountain.
The two had encountered each other halfway up the mountain, both finding their treasures, their faces full of joy.