C616 I'm Glad You're Not a Colleague

Everyone knew that cold tea required medicinal herbs, but they also knew that medicinal herbs were expensive.

Sugar needed to be used for water, and there was no need to talk about that!

This year's sugar was even better than fine rice, who would be willing to part with it?

Therefore, Su Yun patiently explained to Zhang Jingui what it meant to be cold tea and what it meant to be sweet water