In preparation for the 2025 Osaka-Kansai Expo, renovation work has been underway on the Kansai International Airport Terminal 1 building since 2021. As the gateway to Kansai, this project aims to "expand international flight capacity," "enhance the airside area," and "improve passenger experience." Until now, the airport had lounges for each airline, but these have been consolidated into one, providing a larger space through space efficiency. Among these, this project corresponds to Phase 3 of the large-scale renovation, and is an international business lounge with a total area of 2,970 m2 and 658 seats, with the theme of "ancient capitals and cities." The building is divided into two areas with different concepts, "North Side" and "South Side. schematic design was done by Azusa Sekkei, and our company was in charge of interiors (FF&E), working drawings and construction of the facilities, and art supervision.