Dempagumi.inc T-Shirt 

でんぱ組.inc 
Dempagumi.inc band Licensed Merchandise 
100% Cotton T-Shirt 

Japanese idol group Dempagumi.inc was formed in Akihabara, Tokyo in 2008. Their music follows the style of denpa song and has been described as J-pop, animesong, and bubblegum pop.