User blog comment:Hitsuji Mamoru/Servant Creation Room 2 : Guess of the Who/@comment-4802891-20170402200215/@comment-4802891-20170413143716

Nope. Actually, it's a Divine Spirit using a Heroic Spirit as its vessel because of the perfect compatibility. She might be a 2-star but lore-wise, even as a normal human being, she should be on the same level as Li Shuwen. The Divine Spirit is only boosting her parameters slightly, and give her access to a B-rank NP (that she isn't using here).

I'm not even sure why I gave her such a low rarity xD I'm quite random sometimes...