The traditional Okinawan house uses long eaves to stave off the subtropical heat. But deep eaves block natural light and darken the house. By dividing the roof into three parts, it ensured daylight from the north side and made it easier for air to pass through. The split roof secures the ceiling height suitable for each place and brings about change in the space. It is possible to protect a comfortable space with good ventilation while suppressing the strong sunlight of Okinawa. In addition, the space under the eaves that has been secured more than before can be used flexibly.

Masashi Nakamoto is a proactive architect based in Okinawa Prefecture, Japan, situated at the southernmost tip of the country, boasting a subtropical climate. As a young architect, he leverages Okinawa's distinct climate to inform his designs, aiming to harmonize with the natural landscape and devise architecture. His knowledge and spatial design skills have also been adopted in Taiwan, which has a climate similar to that of Okinawa, and are active both domestically and internationally. He has garnered acclaim, including awards for his outstanding spatial design achievements.

Company name ADeR stands for Annettai Design Room. Building architecture cannot be considered separately from the natural environment. "With the intention of putting our feet on the ground and doing design activities, we decided to include the word ""subtropical,"" which is the climate of the place where we work." We believe that the act of designing is not just to create clutter, but to create various relationships.For example, in order to prevent a single tree on a blank sheet from creating a landscape, I would like to create an architecture that is not separated from the memories of life, natural environment, people, culture and land.