I think a more appropriate area for this would be the fanworks section, found here
It takes more than just having a plot to making an anime. While this is also far fetched, you're better off attempting this as a novel or (less likely to happen) manga, and then seeing where it goes from there. Although, because you aren't Japanese (at least I'm assuming you aren't) an American company is far more likely to pick it up and animate it.
IMO, the story could use some work, and less cliches.
[Tombow, Chiyo, I think this is where you guys do your thing ;3]