Neglecting the end capabilities to itself, Kuku is quite fascinated by the study of proportion and create structures between the visible and the imaginary dialogue that put in the physical with the idea of empty space revolutionizing the common conception of living space and challenging traditional architecture dictates. At this immaterial production Kuku also having more works related to the subject such as `Opera Domestica`a series consisting of furniture wooden sculpture that condense the structures and functions of architectural space in the object space.