Comparing an authority-based spirit to a physical-based defender renders YPS tiers secondary to their narrative functions. The gap between YPS-3 and YPS-4 is irrelevant when the central tension for both characters is the transition from forced isolation to strategic dependency. Naofumi builds a pragmatic fortress of allies—Raphtalia and Filo—to compensate for a lack of offensive capability, transforming a systemic handicap into a leadership model. Beatrice, conversely, spends centuries in a self-imposed purgatory, her power gated by a contractor's presence. While Naofumi’s Growth score of 100 reflects a linear trajectory from betrayal to stewardship, Beatrice’s evolution is a psychological rupture. She moves from a passive object of destiny to an active agent of her own will. The contrast lies in their Ego; Naofumi operates with near-zero self-determination, reacting to a world that hates him, whereas Beatrice’s struggle is to reclaim an ego she suppressed for eons. Naofumi proves that reliability is a form of power, but Beatrice demonstrates that vulnerability is the only way to break a cycle of immortality. Their bonds are not just support systems but the actual mechanism of their survival.