Tools that have been created since ancient times have expanded the abilities of humans and greatly increased the things they can do. Stationery and tools are common items in our daily lives. By using these tools, we can now easily do things that humans could not do with their hands. Humans have not only evolved the convenience of these tools as tools, but have also discovered an aspect of artistry in their shapes. The structures and curvaceous beauty of the tools depicted in this series are the embodiment of the accumulated history of human inventions that began in the Stone Age.