possesses pseudo-immortality and can survive being beheaded or losing limbs, simply reattaching them later. The "Sin of Lust" Gowther's title stems from a tragic misunderstanding. Centuries ago, he fell in love with Nadja Liones, who suffered from a terminal heart condition. When she died, Gowther desperately tried to save her by ripping out his own artificial heart and placing it in her chest. Guards found him with her corpse and, seeing the scene, accused him of a heinous "act of lust," leading to his imprisonment and status as a Sin.