"Eiga Mahō Tsukai Precure! Kiseki no Henshin! Cure Mofurun!" is a standalone film set within the "Mahō Tsukai Precure!" universe, expanding on the magical girl adventures of the main characters. The story centers on Mirai Asahina (Cure Miracle) and Riko Izayoi (Cure Magical), who are joined by their magical companion Mofurun, a sentient teddy bear-like creature. The narrative begins with the duo and Mofurun preparing for a festival in the Magic World, a realm where magic is an integral part of daily life. However, their plans are disrupted when a mysterious entity named Shindoine appears, threatening the balance of both the Magic World and the human world.

Shindoine, a powerful and enigmatic figure, seeks to harness the energy of the Linkle Stones, magical artifacts that maintain harmony between the two worlds. To achieve her goal, she creates chaos by spreading negative energy, which manifests as dark clouds and destructive creatures. Mirai, Riko, and Mofurun must confront this threat, but they soon discover that Shindoine’s powers are formidable, and their usual abilities are insufficient to stop her. In a pivotal moment, Mofurun undergoes a miraculous transformation, becoming Cure Mofurun, a new Precure warrior with unique powers. This transformation is a key turning point, as it allows the team to fight back against Shindoine’s forces with renewed strength and unity.

The film explores themes of friendship, courage, and the importance of believing in oneself, as the characters face challenges that test their resolve and bond. The narrative also delves into Mofurun’s character, highlighting her growth from a supportive companion to a central figure in the battle against evil. The climax features an intense showdown between the Precure team and Shindoine, culminating in a resolution that restores peace to both worlds. The story concludes with a celebration of their victory, emphasizing the enduring power of teamwork and the magic of hope. Throughout the film, the dynamic between Mirai, Riko, and Mofurun remains a focal point, showcasing their unwavering determination and the strength of their shared mission.