Mofurun is a light brown teddy bear who originally belonged to Mirai Asahina, having been given to her by her grandmother when she was very young. For most of her early existence, Mofurun was a silent, ordinary stuffed companion that Mirai cherished and took with her everywhere. When Mirai and her friend Liko Izayoi became Pretty Cure, a miracle granted Mofurun the ability to speak, move, and interact with the world around her. She ends her sentences with the verbal tic "mofu."

In terms of personality, Mofurun is gentle, caring, and supportive. Although she initially appears cute and fluffy, she possesses a wise and thoughtful demeanor, always wanting the best for her friends. She is deeply loyal to Mirai and Liko and often offers encouragement and comfort during difficult moments. Mofurun struggles with academic subjects such as mathematics and cannot read kanji, which highlights her childlike and naive side despite her role as a guide.

Mofurun's primary motivation is the happiness and safety of her friends. She wishes to see Mirai, Liko, and the other Pretty Cure succeed and live peacefully. This selfless desire drives her to assist in any way she can, even when it means putting herself in danger.

In the story of Eiga Precure Dream Stars!, Mofurun appears as a supporting mascot representing the Mahou Tsukai Precure! team. Her role revolves around helping the Cures locate a specific symbol that is crucial to the film's plot. When the Kirakira Precure a la Mode team investigates the Magical World, they encounter Mofurun because the jewel on her bow matches one of the symbols on a set of cards that the mysterious girl Sakura carries. This discovery leads to the meeting of the two groups and advances the search for the truth behind Sakura's world. During battles, Mofurun remains by the side of Mirai and Liko, using her ability to sense magical power and her intimate connection to the transformation items to enable the Cures to fight effectively.

Mofurun's key relationships are with Mirai, her owner and best friend, and Liko, whom she also treats as a close companion. She forms a bond with the other mascots and Cures in the crossover film, though her deepest loyalty stays with her original owners. Her development throughout the Mahou Tsukai series and into Dream Stars! is marked by her transition from a silent toy to an active participant in the magical world, growing more confident in her own worth as a partner rather than just a keepsake.

Notably, Mofurun possesses the ability to sense good magical energy. She is also essential for Mirai and Liko's transformations and attacks, acting as a focus for their Linkle Stones and Linkle Sticks. While she does not fight directly in Dream Stars!, her presence is crucial for the coordination and morale of the team. Her physical appearance includes pink hearts on the palms of her paws, pink stars on her ears, a large pink bow with a gem at the center, and a creamy white belly. These features, combined with her soft, fluffy texture, make her instantly recognizable.

Overall, Mofurun is a loyal mascot whose background as a once-ordinary teddy bear given life by magic sets her apart from many other fairies in the Pretty Cure universe. In Eiga Precure Dream Stars!, she plays a supportive yet essential role in bridging the different teams and helping the heroines overcome the challenges they face in the world of Sakuragahara.