Just from loading the game up and looking at the first page, I assume from the grammar issues the author is either ESL or very, very young. (Actually, I probably could have guessed as much from the first line of the description without actually playing....)
So I almost passed on rating this, but then again, it was uploaded on a public site for the public to review as is. And the problems go beyond mere grammar; the entire thing is littered with typos and punctuation mistakes, which I find more and more inexcusable in these days of automatic spellcheckers.
The plot is very...anime, which makes sense I suppose, given what it's based on, though for now I'm not even going to address what I managed to follow of the plot until the technical aspects are cleaned up.