After Wang Ping'an, a late imperial doctor, fell down the stairs, he traveled back to the Xia Dynasty with a takeaway system. The errand assigned to him by the Taiyuan Hospital was to treat the cold concubine in the cold palace. He took out the only "Modern Drug Exchange Coupon" that could be used. The system prompted: [First order discount: Ibuprofen sustained-release capsules, only 1 point. ] The day after the concubine's fever subsided, the king turned over her sign. Half a month later, the concubine touched his flat belly and called his name in front of everyone in the Imperial Hospital.