Zhu Yu was regarded as a useless prince by Zhu Yuanzhang and was sent to Qingzhou. He holds the empire system in his hands, builds roads first at the beginning, secretly creates refined salt, and exchanges it for the Snow Dragon Rider. On the surface, he is a down-and-out vassal king, but behind his back, he is an infrastructure maniac who is extremely wealthy. When the kings of Jin and Yan were fighting for the crown prince's position, Zhu Yuanzhang was worried about the drought in the north and the refugees everywhere. Zhu Shu was in Qingzhou, connecting Kyushu with highways, and harvesting the world's wealth with cheap refined salt. Refugees? Come build the roads and take care of the food! Bei Yuan? Transport troops on the highway and destroy them in three days! When Zhu Biao died of illness, Zhu Di raised an army, and the Ming Dynasty was in turmoil. Zhu Shu led an army of 100,000 soldiers to Yingtian Mansion on the highway he built. Zhu Yuanzhang looked at this most inconspicuous son and suddenly realized: "Old Qi, you have hidden yourself too deeply!"
