User blog comment:Hitsuji Mamoru/Servant Creation Room 2 : Guess of the Who/@comment-30314236-20170525200823/@comment-30314236-20170527180903

Well, you went with the three related to the story. Okay then. The answers to your questions will be explained in her lore. As I said, this was kind of original, so sorry about that. I was going to do her for the old blog, so I had to adapt it so it could be easy to guess.

True Name revealed: Deneb.

Noble Phantasm: Northern Cross.