In an alternative setting story, the prince is hosting a ball at the castle and MC wants to go, but as a plain servant to the three brothers Lucifer, Mammon, and Satan, they are unable to attend. However, with the help of three mice, Beelzebub, Belphegor, and Leviathan, and their fairy godmother Asmodeus, they set out on a plan to sneak into the ball.
