Beth, princess of the Fire Kingdom, sports vibrant red hair in signature pigtails and radiates a loud, energetic presence. Her fiery pride manifests as an initial competitive streak, impulsiveness, and explosive temper, often expressed through boisterous physical outbursts of frustration or enthusiasm. She arrives at the academy fiercely determined to become the Platinum Princess, fixating on one rival princess as her primary competition. Beth relentlessly challenges this rival to contests—from athletic feats to academic trials—driven by a need to assert superiority. This antagonistic edge masks underlying insecurities.

Through shared quests for the five magical Crystals of Happiness, Beth forges deep bonds with the other princesses, especially her former rival. Mutual challenges and support transform rivalry into profound friendship. Her loyalty becomes unwavering; she fights fiercely for her friends. While retaining her passionate core, Beth matures emotionally—tempering her impulsiveness, embracing patience, empathy, and cooperation. Her fiery spirit now fuels protective instincts and allyship.

Beth possesses notable physical strength and endurance, frequently engaging in demanding activities. She demonstrates ironclad determination and willpower, refusing to yield in pursuits or defense. Though not academically traditional, she exhibits practical intelligence and resourcefulness under pressure. Her Fire Kingdom heritage occasionally surfaces in temperament and hinted abilities. Overcoming pride and temper remains central to her growth, as she learns perspective-taking and replaces rivalry with steadfast camaraderie. Ultimately, Beth evolves from solitary competitor to devoted friend, contributing courage, strength, and unwavering loyalty to the group's collective mission.