Mostly it's a boy's name, but it fits well on a girl.
― Anonymous User 1/28/2021
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Koki Mizuno is a Japanese footballer who currently plays as a midfielder for Vegalta Sendai in J1 League. Mizuno began his professional career with JEF United, with whom he won the J. League Cup in 2005 and 2006; he was named most valuable player of the 2006 competition. His other former clubs include Ventforet Kofu, Kashiwa Reysol, and Scottish side Celtic. He is also the cousin of Keita Suzuki, also a footballer.