True agency in the isekai framework is independent of destructive output, a fact laid bare by the identical Ego scores of these two characters. While a massive gap exists between a YPS-3 city-level threat and a YPS-1 human, the disparity in raw power is a distraction from their shared psychological architecture: both are high-functioning dependents. Beatrice spent centuries in a library, her arcane knowledge rendered useless by a paralyzing directive to wait for a specific person. Similarly, Sora’s game-theoretic brilliance is a dormant engine without Shiro's presence. The comparison proves that whether one can level a city or dismantle a government through a game of chess, the result is the same if the will to act is outsourced to another. Beatrice’s transition from a nihilistic librarian to a partner for Subaru mirrors Sora’s reliance on his sister, yet the stakes differ. For Beatrice, the bond is a liberation from an eternal purgatory; for Sora, it is a necessary crutch for a fragmented psyche. This reveals a hidden truth about the "genius" or "ancient" archetype: their perceived superiority is a mask for a profound inability to exist in isolation. The narrative weight shifts from what they can do to who they need to be. By stripping away the YPS tiers, we see that the primary barrier to their growth is not a lack of ability, but the terror of standing alone.