"Oblivion Island: Haruka and the Magic Mirror" is a 2009 animated film that blends fantasy and adventure. The story centers on Haruka, a high school girl who becomes deeply nostalgic for a hand mirror her late mother gave her, which has since gone missing. While visiting a shrine to reminisce, she encounters a small, fox-like creature named Teo, who leads her to a mysterious world known as Oblivion Island. This hidden realm is populated by anthropomorphic creatures who collect discarded human items, imbuing them with sentimental value.

In Oblivion Island, Haruka discovers that her cherished mirror has been taken by the island's ruler, Baron, who hoards human objects to maintain his power. Determined to reclaim the mirror, Haruka teams up with Teo and other inhabitants of the island, including a spirited girl named Lin and a mechanical soldier named Pin. Together, they navigate the island's surreal landscapes and face various challenges, including Baron's enforcers, who seek to stop them.

As Haruka delves deeper into the island, she learns about the emotional significance of the objects collected there and begins to understand the deeper connection between humans and the forgotten items they leave behind. The narrative explores themes of memory, loss, and the enduring value of sentimental possessions. Haruka's journey is not only a quest to recover her mirror but also a process of self-discovery, as she reflects on her relationship with her mother and the importance of holding onto cherished memories.

The film culminates in a confrontation with Baron, whose obsession with control and power threatens the balance of Oblivion Island. Haruka's determination and the bonds she forms with her companions ultimately lead to a resolution that restores harmony to the island and allows her to reclaim her mirror. The story concludes with Haruka returning to her world, carrying with her a renewed appreciation for the past and the emotional connections it represents.