The tragedy of the "optimal build" is the primary target of this world's comedic cruelty, and these two characters serve as the defining antitheses to efficiency. While Megumin operates at YPS-3, capable of leveling city blocks, her utility is a binary switch: she is either a force of destruction or a useless weight on the ground. This is not a failure of growth, but a deliberate choice of aesthetic over utility. Darkness exists as the mirror image of this inefficiency at YPS-2. She possesses the physical durability to withstand almost any assault, yet her narrative value is derived from her inability to land a single blow. One rejects the versatility of magic; the other rejects the purpose of combat. Their DNA profiles reveal a fundamental split in how they process the world's game-like logic. Megumin’s higher Growth score reflects her journey toward integrating her obsession into a social unit, whereas Darkness’s superior Bonds score highlights her role as the emotional and physical shield of the group. The gap between a city-level threat and a superhuman tank is irrelevant because neither character seeks to win in the traditional sense. Instead, they define themselves through what they refuse to do. Megumin refuses to learn a second spell, and Darkness refuses to avoid pain. By pairing a glass cannon with a masochistic wall, the story argues that personal obsession is more defining than any stat sheet. They are not complementary because their skills align, but because they both prioritize their own eccentricities over the survival of the party.