Kaban and Serval travel to the Waterfront Area, where the third generation of PPP are holding their first concert, and meet a fangirl Friend named Margay. As the girls get to sit in on PPP's rehearsal, they discover the group is worried about living up to the standards of their predecessors. Just before their performance, one of the members, Princess the royal penguin, starts acting strange after Margay brings up how the previous generations had fewer members...