Soya Eguchi is a master's student at Graduate School of Media and Governance, Keio University. He is also a co-founder of sekisai inc. He conducts research on new manufacturing methods related to Material Extrusion 3D printing. He used the tools he developed to create a manufacturing design for the 3D printed production of the TOKYO 2020 Olympic and Paralympic podium. He is also working on color design using 3D printing technology, and is involved in the production of sculptures that change color depending on the angle from which they are viewed.