Behind-the-scenes content showing what happens during music video shoots, photo shoots, concerts, and practice. Every group has their own branded version (BTS has Bangtan Bomb, SEVENTEEN has Inside Seventeen; their Going Seventeen is a separate variety series). It's the content between the content, and fans consume it religiously.
"The behind-the-scenes for this MV is funnier than most variety shows. The bloopers alone are worth it."