Leon Arkland, known as Kamen Rider Eden, is the primary antagonist in the Kamen Rider Zero-One: REAL×TIME movie. He is the enigmatic leader of the terrorist group Eden, aiming to create a digital utopia by erasing humanity from the real world. Charismatic and driven by a tragic past, Leon challenges Aruto Hiden and the other Riders with his advanced technology and formidable combat abilities, making him a formidable foe and central to the film's dramatic conflict.