The fundamental tension in isekai isn't the scale of magic, but the direction of the protagonist's evolution. Comparing a YPS-2 narrative-driven lead to a YPS-4 physical powerhouse is a category error because their abilities operate on different axes: one bends the social fabric while the other bends the physical laws of magic. This comparison breaks down at the YPS level, but it clarifies how the genre treats the concept of potential. Mathias operates as a corrective force, treating the world as a series of errors to be fixed through the lens of his past-life mastery. His growth is a restoration project, an obsessive pursuit to eliminate the biological ceiling that once stalled his ascent. In contrast, Iruma’s journey is a genuine metamorphosis. He begins as a passive survivor whose only skill is avoiding conflict, yet he evolves into a leader not through raw output, but through the accumulation of bonds. While Mathias uses physics-based phenomena like dust explosions to dismantle opposition, Iruma uses the Ring of Gluttony and an innate kindness to dismantle the social hierarchy of the demon world. The disparity in their Ego scores reveals the core truth: Mathias is a slave to his own perfectionism and past failures, whereas Iruma’s lack of initial agency allows him to be shaped by the needs of others. One character seeks to dominate the system through superior knowledge; the other transforms the system by simply existing within it. This reveals that narrative power—the ability to shift the emotional state of a world—is often more disruptive than the capacity to level a city.