C284 Ruthless Potioneering

Tang Yu frowned: "I'm here to participate in the Chinese medical exchange seminar."

"You? Participating in a Chinese medicine exchange seminar? Are you admonishing me? Is there an introduction? Do you have a medical certificate from a hospital or clinic? " The security guard asked for a few documents in a row as he looked at Tang Yu with a cold smile.

Tang Yu was startled when he heard it