Introduction to the three halls: is the governor's study and signature room, also known as the official residence. It is here that successive governors practiced calligraphy and wrote books. There is a flower wall in front of it that separates it from the second hall. There is a door on each side that connects the east and west corridors. It is only connected to the inner house door by the covered corridor in the middle, which becomes the only way to enter the inner house.