On July 19, 2017, PIY built a small building in Melbourne, Australia. It is a small castle assembled of 761 components, and they named it "Cells". The nodes are designed as the hand-turned thread tenon and straight tenon, which is summarized as "East Tenon & West Mortise". You will find their products, including variable shelves, study and shoe racks, etc., all of which are broken up and reassembled into an organism. And then, you will feel their desire to grow freely.