The true divide between these two is not the gap between YPS-3 and YPS-4, but the direction of their psychological trajectory. While both exhibit low Ego scores, they move in opposite directions. Emilia represents the struggle to reclaim a stolen identity. Her journey through the Royal Selection is a transition from a passive object of fear to an active political agent. She actively fights the cognitive obstruction and the shadow of the Witch of Envy to define herself. Conversely, Shalltear is a creature of programmed desire. Her perceived growth is actually a refining of her submission. After the trauma of her mind-control rebellion, her narrative goal is not liberation, but the restoration of her status as a tool for Ainz Ooal Gown. One fights to be seen as a person; the other fights to be seen as a perfect object. This exposes a grim reality of the genre: power does not grant autonomy. Shalltear possesses devastating combat capability, yet she is more trapped by her creator's settings than Emilia is by the prejudices of Lugnica. The comparison proves that agency is a moral victory, not a mechanical one.