Fourteen

ashin 14 (邪神１４ Jashin Fōtīn?) is leader of the Roaches and ruler of this world, assuming the human-like form of Fourteen (フォーティーン Fōtīn?) for his "ideal peace", turning humans into mindless slaves. He is a massive creature with multiple arms that floats through the air. He is destroyed by Decade in Complete Form with aid from Armed Hibiki, cutting him in half. After his demise, the Roaches vanish and everyone he'd brainwashed were set free.