The design focuses on the space between the objects that creates the imaginary space. Originating from the word 'Sima' the spaces for the ceremony of Buddhist monks are indicated by the 'Sema' boundary marker. In this context, our stools act as 'Sema' to create the space. The Stools can arrange into close forms, lines, etc. With the idea of the Modular System. With their simple form, the stools can fit in various spaces. The pattern was designed to connect on every side of each piece.