This is a complex institution composed of Multipurpose Transforming Theater, Library and Community Center that is located in Yurihonjo City, in Akita, a Northan part of Japan, facing to Japan Sea.As a local city in Japan, Yurihonjo has typical problems.1/4 people are over 65 years old, and it will be 1/3.As its result, town vitality is decreasing. We tried to create not only the building, but also a system or something like a culture that will re-activates the society within that region.The theater has varying configurations such as flat floor, normal, center stage to be used for various events. The movable seats adapting to multi-configurations with perfect acoustics was designed for this theater. Seats of the first floor can gathered at the back side of the theater and it stored in the pit underneath. The stage also descends for the flat-floor configuration.Originally, this project had two sites sandwiching a road. We combined sites by placing an indoor “Gathering Street” which gives access to each function. Its fissure like form lets sunlight into the deep center of the building. Developed in the workshops with locals, the spaces were designed based on somesthetic experiences - human scale, the usability of rooms. Its structure follows spaces like how mangrove trees grow, and it embraces a high level of redundancy as a structural system. It is not a consistent, but the inconsistent spaces. Also we had organized workshops with local children and students who are the bears of the future of the region. The whole process of Kadare contributes to "Cultural Sustainability".