Flappy hails from the Land of Springs alongside Choppy, acting as both companion and mentor to Saki. As the Fairy of Flowers, he empowers her to become Cure Bloom, wielding floral magic to safeguard nature. His speech is marked by a playful quirk, appending "-lapi" to phrases, lending a whimsical tone to his guidance.

To remain hidden in human society, Flappy assumes the form of a cellphone, conserving energy while discreetly aiding his allies. His core mission revolves around directing Saki and Mai in their battles against organizations like Dark Fall, entities intent on unraveling the world’s equilibrium.

Within pivotal story arcs, Flappy helps Saki and Mai rediscover their shared past—a childhood meeting under the Sky Tree—cementing their fates as intertwined guardians. This revelation forges their partnership as Pretty Cure warriors. During crises, he aids in resolving fractured timelines, defending realms like the Land of Clocks, and strategizing against existential threats, consistently prioritizing collaboration and clever tactics to uphold harmony.