In the old quadrangle, the north room is the master's main room, not due north. The master's bedroom is in the east of due north, and due north is the master's living room, which means living room. The two rooms are connected. The east wing is the master's son's room, and the terrain is slightly lower than that of the north wing. The west wing is the daughter's room (for example, Yingying waits for the moon in the west wing), and the terrain is slightly lower than that in the east wing. To the south is the house where the servants live, with the lowest terrain. To illustrate the position in the family.
After the daughter got married, the west wing was used to entertain guests.