True strategic agency at the YPS-4 level is defined not by the ability to dismantle an army, but by the direction of a character's will. While both figures function as national-scale deterrents, their DNA profiles reveal a fundamental divide between self-determination and systemic reclamation. Kirito operates with a totalized Ego, treating the virtual architecture of Aincrad and the Underworld as extensions of his own tactical intent. He adopts the "Beater" label as a conscious choice, weaponizing his isolation to create a safe perimeter for his bonds. His authority is proactive; he dictates the terms of engagement because he understands the system better than the system understands itself. Emilia, conversely, spends her trajectory fighting a war of identity. Her YPS-4 capability is a burden inherited from a lineage linked to the Witch of Envy, making her power a source of social alienation rather than tactical leverage. Where Kirito optimizes the world to fit his needs, Emilia must optimize herself to survive a world that rejects her existence. Her growth is a slow climb from a state of borrowed agency—relying on the support of Puck and Subaru—to a position of genuine leadership in the Royal Selection. The gap here is not one of capability, but of origin. Kirito is the architect of his own legend, utilizing technical mastery to bypass systemic limits. Emilia is a survivor of a narrative written by others, transforming her inherent kindness into a political tool. One commands the board; the other fights to be recognized as a player.