The disparity in power ceilings between these two companions reveals that in isekai, growth is often a transaction paid for with trauma. While both characters transition from vulnerable children to formidable combatants, the distance between YPS-3 and YPS-4 is measured not in training hours, but in the depth of their moral and psychological scars. One character’s ascent to a city-level threat is driven by a desire for emotional parity and the personal choice to reinvent herself as 'Fitts' to protect her loved ones. This is a pursuit of stability. Conversely, the other’s climb to a nation-level deterrent is a byproduct of systemic erasure. Becoming the Katana Hero and the Heavenly Emperor of Q'ten Lo was not a goal but a consequence of surviving slavery and the burden of duty. The high Darkness score in the latter profile explains the higher YPS tier; the capacity to operate at a national scale is bought with the loss of a peaceful childhood and the weight of a slave crest. Where one finds strength to fit into a family, the other finds strength to dismantle an empire. This comparison exposes a grim narrative reality: the characters who achieve elevated strategic significance are typically those whose lives have been brutally dismantled. The gap in their Ego scores further highlights this; the one who chooses her path remains at a lower power tier, while the one driven by external necessity reaches a ceiling that reshapes the geopolitical landscape.