So it's a mix between fate/stay night and C:Control, uh... Interesting. I just hope that it goes all in with the Chuuni elements it's hinting at, since it seems promising.
However, there's one thing that kind of puts me off for now: the lack of reaction to the appearance of the magical side. I don't know, at least the author could have shown one character clearly confused and panicked by this development? Not everyone is this adaptable.