Unfortunately, there’s no sound due to copyright issues but it’s still fun to watch Kokomi Nakamura’s winning performance from the 2017 NDA All-Star Nationals. I saw something on RKK about her winning another competition in the United States recently but couldn’t find a publically available video of that performance. She’s a student a Keiryo Junior High School (京陵中学校) and, according to the following page, studies jazz dance at a studio run by her mother:
https://www.tku.co.jp/kataranne-shirabetehaiyo/2018/03/26/pg20180326/
– Kirk