Koyama JunseiAhmad HizamiFebruary 27, 2007MCKK Premier 7s 2023 Furuse ShoFujita GotaroHotate RyotaKawai RenshiroSaito RintaroKoyama JunseiSaito YoshihisaTsuchiya YoshinosukeTokura SeitaSuzuki ZenIizuka YugoKuroyanagi Hayate #NameKoyama JunseiCurrent TeamShizouka Seiko AcademyLeaguesMCKK Premier 7s 2023Age17 MCKK Premier 7s 2023SeasonTeamTCPDGAPtsTotal- Career TotalSeasonTCPDGAPtsTotal