Nana's Green Tea is a Japanese tea shop that offers the world a "new form of Japan" through the concept of "matcha" (powdered green tea). The space sought in the store is a "modern-day tearoom.
The tea ceremony room's clay walls utilize the komai technique, which involves latticework of nuki, bamboo, and other materials woven together with straw rope, etc. The density of the latticework has been adjusted to create the strength and openings for the windows. The technique of leaving a portion of the clay wall unpainted to reveal the latticework is called "shitaji-mado" and was initiated by a Japanese tea master, Sen no Rikyu.
As an artistic expression of the komai technique of the tea ceremony room, black wires of ARAKAWA GRIP are woven into the space in a grid pattern, and the density of the wires changes to create a space with walls and windows.