User blog comment:B214/Volume 22 spoilers/@comment-90.202.240.151-20161002221704/@comment-30048084-20161004200132

I also about the Lilith idea but with the info B214 added I pretty much abandoned that idea.

I thought maybe Tiamat considering her position in the rating games and her relationship with Ddraig(she hates him) but I also abandoned that one

After B214 suggested the possibility that Tiamat and Ajuka are together which would be awesome

So I am going to go with the Daughter of Tiamat and Ajuka. The dragon mask she wears could be a reference to her heritage. Hiding her identity from everyone(other than his peerage) is because she is the daughter of a Maou( the creator of evil pieces, organiser of the tournament, can't think of any other reasons right now if you have suggestions please tell me). In the case of the peerage if she is Ajuka's kid then her surname is Astaroth might be trust issues considering past events regardless of who her father is. If no one knows that she is their daughter will also be useful because she can hide her abilities if she has them from everyone else.

Her higher than average abilities come from her heritage. The higher rating well she is Ajuka and Tiamat's kid.

I sadly enough doubt this would actually happen though