Kosuke graduated from the Department of Mechanical Engineering in the Faculty of Science and Technology at Keio University in 2016. During his time there, he conducted research on foot deformations when people walk. In the same year, he joined Recruit Co., Ltd. and worked in new graduate recruiting, planning recruiting strategies for clients and directing the production of advertisements. He was also involved in service design and sales promotion support for Recruit. After that, he worked at atama plus, where he was engaged in content development for educational services leveraging AI, and learning experience (UX) design.