True agency in isekai is often inversely proportional to raw combat output. When placing a YPS-4 tactical anchor against a YPS-3 academic, the disparity in destructive capacity masks a deeper reversal in self-determination. Asuna operates as a high-functioning extension of the systems she inhabits; her zero Ego score reflects a narrative where she is the emotional stabilizer for others, whether as a guild commander or a mentor to Yuuki Konno. Her ascent to nation-level threat status is a result of optimization within a rigid digital framework, making her a pillar of the world but a passenger to its design. Roxy, conversely, possesses a fraction of that raw power, yet her growth is an internal project. Her journey from a mute outcast in the Superd village to a respected mage is driven by a personal, iterative intellectual hunger. While Asuna’s growth is a response to external survival pressures, Roxy’s is a conscious reclamation of her identity. The comparison reveals that being a strategic deterrent in a virtual world requires the surrender of the self, whereas the struggle of a mid-tier caster allows for the construction of a genuine ego. Asuna provides the stability the plot requires, but Roxy pursues the knowledge she desires. This gap proves that YPS tiers measure what a character can destroy, but DNA profiles reveal who actually owns the progress.