Yasuyuki is a member of the Kanagawa Prefectural Assembly of Japan. His main area of expertise is urban planning to improve health and well-being in the community. He advises the council on new facilities and ideas for parks and public facilities. In his spare time, he enjoys outdoor activities such as skiing and mountaineering, and gets involved in sports and environmental conservation in the natural environment.
Yasuyuki studied civil engineering at technical university and went to China for special studies. After returning to Japan, he served as a city counsellor in Fujisawa City, Kanagawa Prefecture, and became a prefectural counsellor in 2019.