This project is an experiment in geometrically defining and applying the use of circles in architecture. It examines what forms result from certain operations and their architectural possibilities, grounded in the theory of <Phylogenesis> by FOA (Foreign Office Architects). Choices are gradually made in the project, considering the given circumstances, such as the program, the type of artifacts that the program must accommodate, and the required spaces. What this project aimed to demonstrate is that architecture involves a myriad of decision-making processes, and each choice creates a sort of bifurcation. From this perspective, a project is not unrelated to another; rather, it has merely evolved differently according to the environment. Therefore, drawing various types of matrices in architectural drawings aids in enumerating possibilities and facilitating appropriate selections.