True mastery in isekai is not about the scale of power but the total removal of uncertainty. Comparing a YPS-4 physical powerhouse to a YPS-1 authority specialist is a category error; destructive capacity is irrelevant when one character fights monsters and the other fights rules. Instead, the real intersection lies in how both characters treat their new worlds as solvable puzzles to mitigate profound psychological fragility. Seiya’s obsession with over-training for a single slime encounter is a rigid defense mechanism born from the failure of Ixphoria, transforming the world into a tactical simulation where chance is deleted. Sora’s reliance on game theory to dismantle Disboard’s hierarchies serves a similar purpose, providing a structured environment where his intellectual dominance protects him from the chaos of genuine human connection. The divergence appears in their DNA profiles: Seiya’s high Growth score marks a trajectory toward healing and self-sacrifice, whereas Sora’s low Ego score reveals a static existence defined by co-dependence. Seiya uses his capabilities to ensure the survival of others to avoid repeating his past, while Sora uses his intellect to construct a reality where he never has to be vulnerable. One solves the world to save it; the other solves the world to hide within it.