User blog comment:Hitsuji Mamoru/Servant Creation Room 2 : Guess of the Who/@comment-28209103-20170328065900/@comment-4802891-20170328083930

I suspect her gameplay NP to be the weaksauce one, for the other might be something of absurd scale, like altering the fate of the world or something lol...

The one I am thinking of isn't in Roman pantheon but is associated to Iustitia. Is it Astraea?