The location is located in a residential area near the station of the regional station. This pharmacy was built on the first floor of the building, facing the road. People in the town have a small diameter leading to the station. As the building was a beautiful concrete structure,Tsubasa Iwahashi thought about the composition that makes use of it. Tsubasa Iwahashi inserted the space that needs to be closed functionally into the large space of concrete as the space made of the tree of the minimum size.

The surplus space other than the space of the tree is used as a place for waiting and lecture.Copper, paulownia or kakishibu is adopted as a finishing material for places where people are likely to come into contact frequently. Both have high bactericidal action and play a role in purifying the space. 

In a large concrete space, a wooden box arranged in a nested manner is considered to be a symbolic presence that will play a self-cleaning effect in this pharmacy, like plants in the forest It is. On the other hand, phytoncide has become scientifically apparent as good for the body.