The paradox of isekai progression is that scaling power often inversely correlates with character growth. When comparing a YPS-5 continent-level entity to a YPS-3 city-level combatant, the disparity in destructive output masks a deeper divide in agency. Benimaru represents systemic ascension; his transition from Ogre to Kijin is a reward for loyalty within Rimuru’s meritocracy. He occupies a stable role as a military pillar, where his growth is a function of the state's expansion. Eris, conversely, defines growth through the rejection of stability. Her decision to abandon her noble status and undergo years of grueling, isolated training is an act of self-determination that Benimaru never needs to perform. While their relative Power scores are identical, the YPS gap proves that absolute scale is a narrative distraction. Eris's high Growth score reflects a psychological overhaul—leaving the person she loves to bridge a perceived gap in strength—whereas Benimaru’s trajectory is a linear climb up a pre-defined hierarchy of power. This comparison proves that true character development occurs not when a character is granted a new tier of existence by a superior, but when they dismantle their own identity to rebuild it from scratch.