The Monster Strike Anime presents a special episode for Golden Week. "Music can't change the world? How naive." Lucifer's world comes to a halt when her band breaks up, leaving her with dull and purposeless days. However, everything changes when she reunites with her cousin Satan and Ibaraki Douji, a member of his indie band called the "Wicked Pistols." Satan shares his ambition of winning the MONSTERS ROCK competition and becoming a mainstream success, but Lucifer doesn't give him the time of day. Yet, a significant incident slowly but surely melts her hardened heart.