While attending the Tokyo Metropolitan College of Aeronautical Engineering, he gave up his goal of becoming a 4-wheel racer. He later became a programmer after working at a noodle restaurant and a welding shop, and was selected as an IPA Unexplored Field Youth (Super Creator) in 2003 and an IPA Unexplored Software Creation Project in 2006. He completed the Graduate School of Media and Governance at Keio University in 2011.

He is currently a member of Birchill Inc., specifically responsible for the development of the search module and developer tools in the Firefox web browser. He founded zeroinon Inc. in 2021. He has received the Good Design Award (2008, 2014), the Aiso Award from the Graduate School of Media and Governance at Keio University (2011), and the Workshop Collection Grand Prize (2015), among others.

Ryoko Ueoka Graduated from the Department of Advanced Interdisciplinary Studies, Graduate School of Engineering, The University of Tokyo (PhD in Engineering), specializing in life logs and emotional engineering. A researcher and entrepreneur who aims to improve the well-being of all people and environments through technology by connecting the environment, body, and information.

From 2025, she will serve as a professor at the Katayanagi Research Institute, Tokyo University of Technology, a visiting professor at Toyama Prefectural University, a director at zeroinon Co., Ltd., and an outside auditor at SEC Co., Ltd.