I don't know for certain. But often in such manhwas, the availability of empty rooms can vary depending on the plot and setting. You could start reading it to discover if there is one.
It's hard to say. Sometimes the layout and availability of rooms can vary depending on the plot and settings of the manhwa. You'd better read it carefully to get the answer.
It's hard to say. Different manhwa have different scenarios. Sometimes there might be an empty room, sometimes not. You could check the latest chapters for a clear answer.
We can see some information about the renovation of the restaurant's private rooms. These results included different styles of restaurant private room design, such as modern style, Chinese style, and new Chinese style. The design of the private rooms in the restaurant should take into account the theme and style of the entire restaurant and maintain a consistent style. The color of the private room should be warm and comfortable, and the lighting should also be soft to give the guests a feeling of being at home. In addition, the design of the private room should also have a certain degree of privacy. Sound insulation or silencing materials could be used to avoid noise interference. At the same time, an information call system should be introduced to provide efficient service. However, the specific design of the restaurant's private room was not found in the search results provided.