I reckon that the 'Pu' in PPP probably means the 'Pu' in Pronghorn-sama.
PPP is pronounced ぺぱぷ, or PePaPu Could you please leave?IbusukiI wanna runThese guys are definitely your fans, Pronghorn-sama!I wanna runHer special skill is racing!!Yo!Entry number one is Pronghorn-sama!First person, please.OK, let's start the auditions.