True power in isekai is measured by the ability to endure the isolation that comes with exceptionalism. Comparing a YPS-6 physical powerhouse to a YPS-4 narrative anchor is a categorical error; the former operates on a scale of planetary destruction while the latter operates on the axis of causal repetition. However, their DNA profiles reveal a shared obsession with the weight of bonds. For Milim, power is a wall that keeps the world at a distance, turning her existence into a search for "fun" to mask a void left by ancient grief. Her growth is a regression—a shedding of godhood to find the vulnerability of friendship. Conversely, Subaru weaponizes his own fragility. He does not bypass the world's laws; he submits to them until they break, using Return by Death to turn trauma into a strategic map. While Milim’s struggle is the boredom of the immortal, Subaru’s is the exhaustion of the mortal who refuses to stay dead. One seeks to forget the pain of the past through play, while the other is forced to remember every agony to secure a future. This contrast proves that the defining power in these narratives is not the capacity to erase a city or rewrite a day, but the capacity to sustain a relationship despite the inherent asymmetry of their existences. The narrative protection of Subaru's luck and the raw output of Milim's energy are different currencies used to buy the same thing: a sense of belonging in a world where they are fundamentally alien.