User blog comment:Hitsuji Mamoru/Servant Creation Room 2 : Guess of the Who/@comment-4802891-20170311133203/@comment-4802891-20170311204124

I have expanded his bio. It's only fair to gave a few more hints about the Heroic Spirit by now^^.

About the spell : the ancient magic isn't from Britain, it's even older than the population of Britain itself.