YouTube。DIAMOND EDGE'' Seventeen 1st World Tour Concert (BEHIND THE SCENES。Seventeen Showcase Multifaceted Talents at 'Diamond Edge' New York。。Japanese Edition] SEVENTEEN 2017 1ST WORLD TOUR 'DIAMOND EDGE' in。即購入◎素人保管ですので気になる方は購入御遠慮ください。質問等ございましたら気軽にコメントどうぞ^^