is a Japanese football player who play as a Central Midfielder and currently play for club, Thespa Gunma.
He comes from a footballing family. His younger brother Koya is also a professional footballer currently playing for club, JEF United Chiba. His father Yahiro is a former professional footballer and currently manager of Kantà  Division 1 club, Nankatsu SC.
In 2022, Koki return to Thespakusastsu Gunma since 2018 as loan transfer.
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