This is a temporary Japanese tearoom exhibited in Echigo-tsumari Art Triennale 2018 and has a nested structure with two-tatami space embedded in ten foot square. In this exhibition, architects were asked to respond to the theme of how to overcome the concept of homogeneous space that was dominant in the 20th century. The skeleton was designed using the random pattern which was called Voronoi Division to distort homogeneous space. And it was proposed that the architecture with a large number of holes what could be opened and closed as needed to communicate with the outside like a living thing.

Ryumei (Takaaki) Fujiki completed his MA and the Doctor of Engineering at the University of Tokyo under Prof. Hiroshi Hara and Prof. Akira Fujii. He founded F.A.D.S in 1991. He has been teaching as a professor at the department of architecture of Kogakuin University (KOU: :ARC) ,Tokyo since 2001. He has a great interest in nature especially the advanced system of nature. Yukiko Sato joined F.A.D.S as a design partner since 2000. She graduated from Japan Women's University. Now, She is teaching at Japan Women's University as a Lecturer. F.A.D.S has made numerous practical works in Japan.

F.A.D.S has been founded in 1991 by Ryumei Fujiki as an architectural design office to design house, commercial building, shop interior, health facility, and cultural complex etc. Yukiko Sato joined F.A.D.S as a design partner since 2000. We have a great interest in nature especially the advanced system of nature. F.A.D.S has made numerous practical works in Japan. Fujiki Studio, KOU::ARC means Fujiki Laboratory of Kogakuin University in Tokyo. Ryumei Fujiki is a professor of Kogakuin University.