(fos) is the name of the first ephemeral installation by the multidisciplinary team (fos). It means light in Greek and melted in Catalan. In this project it has been represented by a skin that covers both vertical and horizontal surfaces. The protected facade of the vegan restaurant Rayen at Lope de Vega street in Madrid has been illuminated for 4 days and nights by more than 250ml of yellow tape, painted décor items, pineapples and… a lamp. A visual game between perspective and colored volumes that gained the looks. (fos) is a multidisciplinary team based in Madrid and Barcelona. Working as independent architects, interior designers, art directors and graphic designers, decided to join as a multidisciplinary team to create design experiences and, above all, have fun. It consists of Eleni Karpatsi, Susana Piquer and Julio Calvo.