A pharmacist who has mastered the art of healing, a virtuous person, full of secrets and mysteries, knows how to treat any disease, but for some reason he himself is in poor health. Bai Zhu is well versed not only in medicine, but also in the secrets of trade.  There is nothing surprising here: to manage such a large pharmacy shop, the art of healing alone is not enough.  The prices for goods in the Bubu hut are quite fair; Bai Zhu makes his profit not through markups, but through sales volume.