Majored in aerospace engineering at university and pursued graduate studies in human-computer interaction. As a student, YONEZAWA developed Cat@Log Human Cat Interaction Platform, which was selected as an Exploratory IT Human Resources Project (MITOU Project) by the Information-Technology Promotion Agency of Japan. She works in a wide range of technology-related fields, from R&D and corporate campaign planning to service planning and development, product innovation, and art. She also delivers consistent creative direction, from corporate identity formulation for a space startup to product design. She joined Wieden+Kennedy Tokyo in 2020. Her major projects include dots by internavi and Sound of Honda / Ayrton Senna 1989 for Honda, PLAY AIR for Olympus, HAKUTO for ispace, and CATS music video for Leah Dou. She has won numerous awards such as the Cannes Lions Titanium Grand Prix, the D&AD Black Pencil, Japan Media Arts Festival Grand Prize, and the Good Design Gold Award. She is also a cat lover.