A single-family residence located in a typical residential area, where two-story wooden houses are densely built. In order to obtain fine living environment while giving a minimum impact on the surroundings, we proposed a plan in which three volumes of the bedroom with the opening turned for the south are pulling out from the roof level as if they were a set of periscopes. In this way, the house not only acquires a great deal of sunlight and good views within a dense urban milieu, but also a generous common space that connects the first and the second floor together. Each interior space is gently articulated by the different floor level, allowing various and creative spatial usages.