The divergence in growth trajectories reveals a fundamental clash between mechanical evolution and ideological rigidity. While Filo represents the archetype of the "upgrade" fantasy, ascending from a fledgling bird to a YPS-2 Filolial Queen, Megumin operates as a deliberate rejection of that same progression. This comparison highlights a critical distinction in DNA Growth scores: Filo's 100 is a measure of biological and functional expansion, whereas Megumin's 60 reflects a social maturation. Megumin possesses a higher destructive ceiling at YPS-3, yet she treats this power as a static identity rather than a stepping stone. She refuses the versatility that Filo naturally acquires through her bond with the Shield Hero. Consequently, the gap between them isn't about who wins a fight, but about how they define progress. Filo grows by becoming more; Megumin grows by accepting that she will never be anything other than a one-shot explosion. The tension lies in the fact that the more evolved character is actually the more limited in terms of agency, remaining a loyal companion, while the stagnant mage drives her own narrative through an irrational, singular obsession.