Koatsu Yashima is from Japan and received her early training at Noriko Koizumi Ballet Studio. In 2015, she moved to New York City to train in the professional training program at Gelsey Kirkland Academy. The following year she joined Gelsey Kirkland Ballet as a trainee. Koatsu joined Eugene Ballet in 2017 and has danced many principal and soloist roles including Clara and Sugar Plum Fairy in The Nutcracker, Monkey Queen in Toni Pimble’s Mowgli–The Jungle Book Ballet, Ingrid in Peer Gynt, Alice in Alice in Wonderland, Cinderella, and The Little Mermaid.
