‘Mobile Library’ project is commissioned by Seoul Innovation Park and Seoul city. 100,000m2 site was occupied by Ministry of food and drug safety for last 6 decades. The intention of the project is to revitalize and open gate to the public for its first time. Currently, number of social companies and startups are gathered and occupied to solve social issues in Seoul. The Seoul city governments decided to open the complex to vitalize natural interaction between the tenants and citizens. The key concept of the project derived from the logo ‘cube’ of Seoul Innovation Park. The cube is one of the most basic geometry, but yet, it creates dynamic manifold with small changes. Each Pavilions named after its externally exposed cladding characters, such as pipe, mirage, block attached and membrane pavilion. The very basic shape cubes are experimented and developed with various colors, finishing material and positioning angle etc. The membrane pavilion, on the other hand, is curvilinear shaped, which creates a strong contrast to the others but still stays in harmony with the surrounding of Seoul Innovation Park.