David attended international schools from an early age, and he joined Space BD as a new graduate after graduating from the Faculty of International Social Sciences at Gakushuin University in 2024. In university, he mainly focused on business, finance, and social sciences, and was also enrolled in a seminar that studied corporate and financial analysis from an accounting perspective. In addition, he worked as an intern for about 4 years, mainly in the retail business, hotel business, and social welfare business, working on new customer development and operations. He joined Space BD because of the potential of the space industry and the unique culture of a startup.