Pepperoni is an extrovert and easy-going girl, who has a tendency of being rash and not thinking things through. While her cheerful personality makes her an excellent companion, her carelessness about her school's secret weapon allowed Yukari to directly guess what it was; also, during the battle she placed all the decoys (even though two were supposed to be spares, and their presence led to Ooarai sniffing the trap), while ironically remarking that battles aren't won by strength alone