Night Pumpkin emerges as the primary antagonist in the final segment of the film anthology "Pretty Cure and Refi's Wonder Night!". His striking form features a pumpkin head with a carved grin, thin green legs, a tall slender body clad in a tuxedo, and a cape. He exhibits a selfish and cruel personality, wielding his powers callously for personal satisfaction and displaying profound arrogance that proves his undoing. His background involves invading the Night Kingdom, where he imposed eternal night by stealing its daylight and imprisoned the kingdom's rulers, Refi's parents. His abilities encompass stealing daylight on a dimensional scale and targeting individuals for erasure.

Within the film's events, he confronts the protagonists seeking to restore light. After overpowering Cure Mermaid, Cure Twinkle, and Cure Scarlet, he targets Cure Flora and Refi, seizing Refi's Miracle Princess Light and causing them to fall from a rooftop. Refi reclaims the light, and the combined efforts of the Cures lead to his defeat and banishment from the Night Kingdom after Refi uses the light to restore daylight. Ten years later, he is inadvertently revived when Sonomiya Hana records a dream using a notebook he created as a trap. Utilizing residual energy, he erases Refi's existence. The Cures ultimately purify him permanently using the "Pretty Cure Royal Eternal" attack. Night Pumpkin operates independently, with no established connections to antagonistic factions like Dys Dark.