The mark on Tatsumi's arm goes back to its small size, much to the chagrin of Hildegarde who destroys his games console. She brings a play room for Baby Beel to play in, but upon building it, it turns out to be a magical cage that both she and Tatsumi get stuck inside. The only way to get out is to have Baby Beel solve a block puzzle toy, but he just ends up breaking it. Frustrated, Tatsumi utilizes his Zebel power to punch his way out, though it makes his mark grow big again. Rummaging through a bag of demon world toys, Baby Beel opens a chest that transforms Tatsumi...