Introduction to the second courtyard: In the second courtyard, the left wing building is the "official class" housing, which is equivalent to the current office. The "official class" is composed of 12 Zhaolang or Bolang and the clerks who have been promoted to departmental duties by the chieftain. On the left is the armory, which is the office of the civil servants and military attachés. The soldiers guarding the ordnance live upstairs.