Yuka Ooka began her career as a PHP and Ruby developer and product manager at several Japanese IT companies before going freelance in 2016. She took an early interest in React, still a niche technology in Japan at the time, and worked with a series of clients as a React specialist. Drawing on that experience, she wrote the Riakuto! (りあクト！) series. It struck a chord with readers in Japan, selling over 40,000 copies in total.