The fundamental disconnect between physical output and intellectual authority renders a direct YPS comparison meaningless here. While Roxy operates at YPS-3 and Shiro sits at YPS-1, these numbers measure different currencies: one tracks the ability to level a city, the other tracks the ability to manipulate a system. The real divergence lies in the relationship between competence and autonomy. Roxy represents the isekai standard of growth through vulnerability. Her journey from a marginalized Migurd outcast to the emotional center of a family proves that her value is not her magic, but her capacity to evolve. She accepts her insecurities and transforms them into bonds. In contrast, Shiro is a static entity. Despite her analytical brilliance, her Ego score of 0 reveals a total lack of self-determination. She exists as a cognitive extension of Sora, rendering her genius a tool rather than a catalyst for personal development. Where Roxy uses her knowledge to bridge gaps between people, Shiro uses hers to solve puzzles, remaining trapped in a cycle of dependency. This reveals a critical distinction in how the genre treats intelligence: for Roxy, mastery is a stepping stone to humanity; for Shiro, mastery is a substitute for it.