4K Japanese high school girls dance (女子高生 JK ダンス)
https://www.youtube.com/watch?v=g9I1GJNks80

4Kモニターディスプレイ
￥32,378
https://www.amazon.co.jp/dp/B01L8H204W/
￥36,800
https://www.amazon.co.jp/dp/B071CQJ9HG/