One and Only S01E12 - Shi Yi gets an marriage proposal from a scholar in Nan Xiao

The other day King of Nan Xiao came to visit Zhou Sheng Chen at the Long Kang Academy. There he asks for something in exchange for letting them return back. Shi Yi offers them a huge amount of rare and famous literature collections but they must be kept in Long Kang Academy. Then he meets his son, Prince Feng Yang but couldn't persuade him to stay behind. Then they go around the city for some amusement.