"Miyori in the Sacred Forest" is a 2007 anime film based on the manga by Hideji Oda. The story centers on Miyori, an 11-year-old girl who is sent to live with her estranged grandmother in a remote mountain village after her parents' divorce. The village is surrounded by a dense, ancient forest believed to be sacred and inhabited by spirits. Miyori, initially resentful and withdrawn, struggles to adapt to her new life and the unfamiliar rural environment.

As Miyori explores the forest, she discovers that she possesses the ability to see and communicate with the spirits that reside there. These spirits, ranging from mischievous creatures to powerful guardians, reveal that Miyori is the chosen guardian of the forest, a role passed down through generations. The forest is under threat from human development, and the spirits rely on Miyori to protect it from destruction. This responsibility forces her to confront her own feelings of loneliness and abandonment while grappling with the weight of her new role.

The narrative delves into Miyori's relationships with the villagers, her grandmother, and the spirits. Her grandmother, initially distant, gradually reveals her own connection to the forest and its guardians. The villagers, unaware of the spirits' existence, view Miyori with suspicion, further isolating her. However, as Miyori begins to embrace her role, she forms bonds with both the human and spiritual worlds, finding a sense of belonging and purpose.

The film explores themes of environmental preservation, the clash between tradition and modernity, and the emotional growth of a young protagonist. Miyori's journey is marked by her internal struggle to reconcile her personal pain with her duty to protect the forest. The story culminates in a climactic confrontation as Miyori must use her newfound abilities and courage to save the sacred forest from impending destruction, ultimately finding strength in her connection to both worlds.