Gou-dere Bishoujo Nagihara Sora - Vol. 1 Ch. 7 - Real?

[MangaDex]

 

[D1003Briner]

She seems to be doing a weird stance in page 3 with her right arm, it just looks a litle roman or german if you know what i mean

 

[D1003Briner]

So now its a game about who is the real nagihara sora

 

[Ominous]

Now I'm curious what character is being referenced from what series on page 9.