ust is a post-apocalyptic action manga set in a world where a mysterious rust-like infection has devastated civilization, following survivors who must navigate the dangers of the infected wasteland while searching for a cure. As they face infected creatures, hostile human factions, and the harsh environment while uncovering the truth behind the rust plague, the narrative explores themes of survival, hope, and human resilience in the face of extinction with gritty action and atmospheric world-building. Blending post-apocalyptic, action, horror, and survival elements with infection premise, the series delivers intense storytelling that appeals to fans of post-apocalyptic narratives and survival horror. Also known as Rust manga, post-apocalyptic action, infection horror, and seinen survival.