The 16-year-old right-hander is believed to be the youngest player from Japan to sign with a big-league team. He’s headed to the Kansas City Royals’ organization instead of attending high school in Japan. The 6-foot-2, 170-pounder agreed Sunday to a minor-league contract with a $322,500 signing bonus. The Royals hope he’ll arrive in August at their spring training complex in Surprise, Ariz. He would participate in the Royals’ fall instructional league in September and October, with the objective of making his debut in the minors next year.