User blog comment:Hitsuji Mamoru/Servant Creation Room 2 : Guess of the Who/@comment-27971189-20170725135509/@comment-27971189-20170725155637

I'll just said that this character is not from actual history, folklore, etc something like that.

Its fictional character from outside works-- like that Naked Snake and John Cena.

At first I'm not sure about doing this, but that announcement easily means green-lit for me.