The folk tale you thought you knew gets gutted and rebuilt as a murder mystery. A red oni and a blue oni are bound together by something darker than legend ever told, and the film spends its runtime pulling apart what "cruelty" and "kindness" actually mean when two creatures can't exist without destroying each other. By the end, you won't know which one you were supposed to root for, and that's exactly the point.
Two demons live in isolation on a remote mountain, bound by a friendship forged in loneliness. The red oni desires connection with humans, convinced that kindness and sacrifice can bridge the gap between their worlds. The blue oni resists this dream, protective of what they've built together in their solitude. When the red oni finally acts on their convictions, setting events in motion that will reshape both their lives, the blue oni must confront an impossible choice: support a friend's departure or preserve their bond at any cost. What unfolds is a quiet meditation on love, sacrifice, and the nature of friendship. The narrative peels back layers of an ancient folklore to examine what it truly means to care for someone, even when that care demands self-erasure. Atmospheric and contemplative, the film moves with deliberate pacing, letting silences speak as loudly as dialogue. The story carries weight not through spectacle but through the raw emotional stakes between its two characters. Viewers drawn to character-driven narratives with folkloric roots and bittersweet conclusions will find themselves deeply moved by what transpires here.