Originally from Akita, Japan, Koyo worked as a physical therapist after graduating from Aomori University of Health and Welfare. He has gained clinical experience at an acute care hospital and a clinic. He currently serves as the manager of Aoyama Myofascial Seitai Rigaku Body Musashi-Kosugi and as a trainer at YOUTRAL Zushi. He resides in Kanagawa, Japan.