Movie
Description
Hermes is a sentient Brough Superior SS100 motorcycle acting as the primary travel companion to the protagonist, Kino. Discovered broken in an alley by the original Kino within the Land of Adults, he was repaired by the original Kino and a child who later adopted the Kino name. Hermes lacked speech capability during this repair. He was named after the original Kino's previous motorrad. Following the original Kino's death, the child used Hermes to escape the Land of Adults, collapsing exhausted in a flower field where Hermes spoke for the first time, addressing the child as Kino. The child accepted this name to honor the original Kino's sacrifice.

Hermes displays a pessimistically realist and unbiased personality, frequently offering comic relief through complaints or misremembering famous quotes, leading to corrections from Kino. Despite occasionally annoying Kino, he remains a reliable companion. He possesses high intelligence, particularly for technical and physical assessments, capable of complex analyses like verifying the feasibility of a mythical flying machine, though he often communicates such insights vaguely. His core function is symbiotic: he provides speed while Kino provides direction and balance. Hermes does not form emotional attachments to specific riders; his purpose is to serve as transportation for any traveler. Kino fiercely protects him to ensure his continued operation.

His design and functionality are directly based on the real-world Brough Superior SS100, a historic motorcycle noted for early 20th-century engineering achievements, including a guaranteed top speed of 100 mph. The anime incorporated authentic engine sounds recorded from a vintage SS100. In the spin-off "Gakuen Kino," Hermes appears as a cell phone strap—a canvas strip with a brass buckle engraved with an SS100 image—while retaining his established personality.

Hermes occasionally voices the series' thematic refrain, "the world is not beautiful, therefore it is," reflecting his role in exploring philosophical contrasts between brutality and beauty during their travels. He maintains a consistent presence across all media, including light novels, anime adaptations, films, and spin-offs, without significant developmental changes beyond contextual variations like his "Gakuen Kino" incarnation.