Golden Dragon Pill... price... 250.000.000 Spirit Stones?!

The lecture went on for another two hours, during which Xie Qing and the other students learned how to properly evaluate their pills and avoid selling poor-quality products. Despite the late hour, none of the nineteen students looked unhappy or tired, and they all had satisfied smiles on their faces as if they had eaten swan meat and were happy.

Before leaving, each student made sure to bow and thank Lu Yin for her guidance.

"Thank you, Healer Lu, for the invaluable knowledge!" they said.

"You're welcome. I wish you luck on your path," she modestly replied to them. She saw off each student with a smile, treating them fairly and equally, without giving anyone more attention than necessary.

When the lecture hall was empty, only Xie Qing and Lu Yin remained. The room began to shrink, and soon they found themselves in a much smaller room.