Ryosuke graduated from the Ritsumeikan University Graduate School of Technology Management. After which he joined Fujitsu Ltd., and engaged in the operation, project management, and development of a one-hundred- person banking system, akin to Saki Megabank and various regional entities. As a server-side engineer at Ticket Star Co., Ltd. he oversaw the development and operation of a large-scale ticket system that supported a turnover of >10 billion yen. In Pocket Change, he engages in back-end and front-end development. Tani-san is in a cycling club, when its sunny he likes to ride his bike to work.