Abara is a dark and visceral science fiction horror manga that follows Kudou Denji, a man who can transform into a powerful biomechanical being known as a Gauna after implanting special bones into his body, as he battles monstrous creatures threatening humanity in a dystopian future. As he fights to survive and uncover the truth behind the Gaunas' origins, the narrative explores themes of humanity, transformation, body horror, and survival in a decaying world with unflinching brutality and atmospheric dread. Blending cyberpunk, horror, and action elements with Tsutomu Nihei's signature biomechanical art style, the series delivers intense combat sequences and intricate world-building that appeals to fans of dark science fiction. Also known as Abara manga, ABARA, アバラ, Tsutomu Nihei manga, biomechanical horror, post-apocalyptic action, dark seinen manga, and cyberpunk horror series.