guest room; parlor; drawing room
A room in a house or inn used for receiving and entertaining guests; often a more formal or traditional sitting room.
I showed the guest into the parlor.
この旅館の客間からは庭がよく見える。
From the guest room of this inn, you can see the garden well.
I showed the guest into the parlor and served tea.
My grandmother entertained relatives in the guest room.