is a Japanese footballer who plays as a midfielder for Singapore Premier League club Tampines Rovers.
On 9 January 2022, Koya joined J2 club, JEF United Chiba as permanent transfer.
On 16 June 2025, Koya moved to Southeast Asia to join Singaporean club Tampines Rovers.
Koya comes from a footballing family. His elder brother Koki is also a professional footballer currently playing for club, Thespa Gunma. His father Yahiro is a former professional footballer and currently manager of Kantà  Soccer League Division 1 team, Nankatsu SC.
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