"Rooms" is an omnibus-style collection of illustrations and short comics showcasing the colorful and unique rooms and the everyday lives of the girls who live there. There is one story per room, with nine rooms featured in total. Each room is lovely enough to make anyone want to actually live in them. The layout of each room, the arrangement of the furniture, and the accessories on display reveal the personalities and characters of each girl. Cute pets, such as cats and dogs, also sometimes appear in the story, adding a touch of warmth and coziness.