Tart, a ferret-like fairy from the Sweets Kingdom, serves as Chiffon's primary caretaker. He communicates in a distinct Kansai dialect, frequently ending sentences with "~ya" or "~yade". His full name, Tarte F. Funbolg Nicobunskiloni, occasionally escapes him due to its length. Physically, he possesses light brown fur, a white stomach, brown eyes that sometimes appear reddish, tan ear interiors, and an indigo cloth-like shawl around his neck. He holds the distinction of being the franchise's first mascot character designed with visible sclera. Anxiety-prone and quick to overreact, Tart often displays a smart-mouthed exterior yet harbors a deeply kind, caring nature. His emotional sensitivity leads to dramatic tears during moving stories. A recurring flaw is his belated recall of crucial information, which complicates situations. He adores doughnuts, typically earned by entertaining patrons at Kaoru's café. Residing incognito as a household ferret with Momozono Love's family, he is embraced as kin by Love and her sister Setsuna—despite light-hearted conflicts like covertly eating their ice cream. Yamabuki Inori's initial fear of ferrets wounds him, but they forge a close bond after a body-swap incident reveals her phobia's origin. He shares a nurturing, brotherly or fatherly dynamic with Chiffon, diligently tending to her needs like milk preparation. Engaged to Azukina, a squirrel-like fairy from a neighboring kingdom, he frequently boasts about their impending marriage while fretting over her safety. He reveres Kaoru for doughnut provisions and passionately cheers for the comedy duo Audrey during battles. Pre-series, Tart was engaged to Azukina and managed royal duties amid the Sweets Kingdom monarchs' frequent absences. He discovered Chiffon in a forest and brought her while scouting the human world for Pretty Cure. His challenges include nearly exposing his speech ability during a public stomach ache and shielding Azukina from a Mashin monster in the Sweets Kingdom. His arc culminates in returning to the human world to guard the Clover Orgel of Happiness against Labyrinth. In the final battle against Moebius, he and Azukina rally human citizens to support the Cures, distributing doughnuts as gratitude. Post-series, he marries Azukina and returns to the Sweets Kingdom with her and Chiffon, though they continue human-world visits per the sequel novel. In "Omocha no Kuni wa Himitsu ga Ippai!?", Tart joins the Pretty Cure investigating toy disappearances in the Land of Toys. He plays a board game with Chiffon, landing on a "rest space" that induces sleep. Awakening later, he aids in mobilizing citizen support during the climax against Toymajin. He appears in a "HUGtto! Pretty Cure!" cameo discussing childcare with Harry, features in multiple "Pretty Cure All Stars" films, and surfaces in the manga adaptation, the "Fresh Pretty Cure! Asobi Collection" video game, and the sequel novel confirming his ongoing travels between realms.