True autonomy in the isekai hierarchy is often disguised as loyalty, but the gap between adaptive evolution and programmed devotion is where the real tragedy lies. While a YPS-2 Filolial Queen and a YPS-3 Floor Guardian operate on different destructive scales, their DNA profiles expose a fundamental divide in how growth functions. Filo represents a trajectory of pure accumulation; her 100 Growth score reflects a journey from a mindless creature to a sentient partner, where a lack of Ego is not a deficit but a space for organic development. Conversely, Shalltear’s high Growth score is an illusion of progress. Her arc is not an ascent but a correction. After her rebellion under mind control, her narrative shift is a desperate attempt to realign herself with the settings written by her creator. She is a finished product attempting to fix a glitch, whereas Filo is a seed becoming a tree. The tension here is that the simpler creature possesses a genuine path to self-actualization through her bonds with Naofumi and Melty, while the more powerful vampire remains a prisoner to her own code. Shalltear's devotion is a requirement of her existence; Filo's is a choice born of experience. This comparison proves that in the YPS system, a lower power ceiling often allows for a more authentic internal arc because the character is not already a completed architectural project.