Li Qing, an immortal who traveled to the Ming Dynasty, was supposed to be free in the mountains, but because Zhu Yuanzhang was abandoned by his master when the Jin Yiwei arrived in order to cure Empress Ma's terminal illness, he was taken into the palace. Li Qing immediately began to treat Empress Ma in the palace while experiencing the internal political struggles of the Ming Dynasty palace. He gradually gained Zhu Yuanzhang's trust and became his powerful assistant and a sharp sword to deal with corrupt and treacherous officials.