At HAY TOKYO, we developed movable display furniture systems named "interfaces" that instigate people's activities and create an ever-evolving store space. These "interfaces" are something between architecture and furniture: they are furniture systems which can be moved only by store administrators who know the mechanism of each system. One of the "interfaces" is a wall system composed of raceways perforated at every 1200mm along the entire length, where wall panels can be placed anywhere using freestanding free-standing steel pipes fixed in place using the holes in the raceways.

The raceways carry not only wiring ducts containing lighting wiring but also power supply wiring connected to the floor using drum-type extension cords. The other "interface" is a series of furniture pieces that are too heavy to lift manually but can be moved by one person using a hand lift including cash register counters, chair display shelves, and plant boxes. This space consisting of the two kinds of interfaces can be completely cleared out overnight except for the cafe area, which means that it is capable of responding to specific requests such as "a half of the space needs to be cleared to hold a live performance".