The second young lady of the prime minister's mansion, Yun Chuchu, was not very old, and her name as a talented woman resounded throughout the capital. However, what everyone didn't expect was that she clamored to find a good husband for herself, and even published a couplet. She will marry whoever says the second couplet. This first couplet is to learn mathematics, physics and chemistry well. For a while, all the famous families in the capital are puzzled by the second couplet, but the strange second couplet still flies to the prime minister like snowflakes Mansion. The crown prince, who has been weak and sick since he was a child in the palace, heard about this, but sat up in shock in his dying illness, and tremblingly faced the next couplet——I am not afraid to travel all over the world.