The Prinnies' longest day - S1.E8

All the Prinnies suddenly vanish, and without anyone to do his chores, Laharl becomes bent on finding them. He, Flonne, and Etna manage to locate them and uncover a plot to take over the Netherworld. Will Laharl thwart their plans? And who is this strange pink Prinny that has appeared before the group?