"Mt. Head" is a short anime film based on a traditional Japanese rakugo story, adapted into a surreal and darkly comedic narrative. The story centers on a miserly and selfish man named Oshizu, who lives in a small, impoverished village. Oshizu is notorious for his extreme frugality, often scavenging for food and refusing to share with others. One day, he consumes a cherry pit instead of discarding it, which eventually grows into a cherry tree on top of his head. The tree becomes a source of both fascination and ridicule among the villagers, who mock Oshizu for his bizarre condition.

As the tree grows, it begins to bear fruit, attracting birds and other creatures that further disrupt Oshizu's life. Despite his attempts to remove the tree, it persists, symbolizing his greed and the consequences of his selfishness. The situation escalates when Oshizu dies, and his spirit, still burdened by the tree, is condemned to wander the afterlife. In the underworld, he encounters other spirits who judge him for his actions in life, leading to a surreal and haunting conclusion that underscores the themes of karma and retribution.

The narrative is driven by Oshizu's character, whose flaws and actions serve as the focal point of the story. The villagers and spirits act as secondary characters, reflecting societal judgment and the moral consequences of Oshizu's behavior. The film's brevity and simplicity allow it to focus intensely on its central themes, using surreal imagery and dark humor to convey its message. The story's roots in rakugo are evident in its structure, relying on a single protagonist and a straightforward yet impactful plot to explore deeper moral and philosophical questions.