- With Dutch National Ballet since: 2020
- Place of Birth: Tokyo, Japan
- Carreer with Dutch National Ballet: Junior Company 1st year (2020)
- Training: Koyo started dancing when he was 5 years old. When he was 11 years old he began studying at the Acri Horimoto Ballet Academy. He trained at this academy until he was accepted at the Tanz Akademie in Zürich, where he studied for another three years. Koyo won the fourth prize at the Prix de Lausanne in 2017 and the first prize at the Talinn International Ballet Competition in 2018.