Aoi Tategami is a diligent, intelligent middle school student renowned for her exceptional academics, consistently topping her class. She exhibits a calm, serious, and somewhat reserved personality, meticulously planning her approach to all tasks. This dedication extends to her role as a Precure warrior.

Transforming into Cure Gelato, the Precure of the Blue Sweets, she utilizes the Kirakiraru Recipebon and a Sweets Pact filled with blue kirarin. Her primary attack, "Precure! Gelato Éclair!", conjures a large ornate spoon to scoop and launch a giant blue sweet projectile. Her secondary attack, "Precure! Gelato Shower!", creates multiple smaller spoons firing a barrage of energy beams.

Despite her academic prowess, Aoi harbors deep insecurity about her perceived lack of talent in learning French, especially compared to her friend Ichika Usami. This insecurity intensifies during an overseas trip to Paris. Feeling inadequate and embarrassed by her struggles despite dedicated study, she initially avoids speaking French entirely.

Faced with a crisis involving captured friends and a Kirakiraru-powered threat, Aoi confronts her fear. Bolstered by her teammates' belief and the urgency of the situation, she finds the courage to attempt speaking French to seek help from Parisian locals. Overcoming this paralyzing self-doubt proves pivotal.

Successfully communicating and gaining assistance demonstrates her capability and marks a breakthrough. This hard-won confidence directly aids the team's strategy in the final battle, where she effectively uses her French skills to coordinate efforts and help secure victory. The experience signifies personal growth, moving past her fixation on perceived shortcomings and embracing the courage to try despite potential failure.