This house is located at the eastern foot of Mt.Katsuragi in Nara, Japan. A couple, their mother, and two cats live under a simple triangular roof. The couple's and mother's areas are partially independent and partially overlapping. The couple's areas are the living room on the first floor with large windows and bookshelves, and the landing, bedroom, and bathroom on the second floor. The mother's room is the opposite, with the bedroom and bathroom on the first floor and the compact living room on the second floor. The entrance, laundry, and pantry are shared. Outside the window, the seasonal scenery of rice fields and Mt. Katsuragi spreads out, and time passes slowly.