User blog comment:DYBAD/Character Sheet/@comment-4867780-20161025143014/@comment-4867780-20161029101645

That is exactly what Seira was in the previous version, I decided to introduce the Silver Sisters in order to bring back the dimension of service providing, which was somewhat lacking since directly managing everything made her feel like a Deus Est Machina rather than an actual person. So the Sisters are the human-friendly bridge between the godlike Seira and Selforge City's population ^ ^

Honestly, it is hard to imagine a challenge they couldn't pass with flying colors, since each Sister has unrestricted access to the Transcendence Matrix (see the penultimate section in "Base of Operations"), allowing them to gain any ability at will. Though in practice they are very balance-friendly persons, and only use just the right skill/power/level to optimally fulfill the task at hand.