>You are Sango Tororetsu, high-schooler from the middle of nowhere.
>You live on Gensoushima, a small island just on the brink of Japanese oceans. While not exactly sizable, the island has kept up with modern technology and trends - well, give or take six months on the latter.
>Unfortunately, this also means they've kept up to date with Japan's rigorous education regime. Every week you get algebra and literature and science thrown at you, and it all sort of goes over your head. You don't really have any dream career to follow, and frankly most of the stuff they're trying to teach you here seems just about pointless.
>If there's one thing you've been interested in, it's the ocean - well, in your defense, you've been surrounded by it all your life. The one hobby you follow avidly is competitive swimming - despite being a year younger than your competitors you're the undisputed champion of the school team, and there's been talk of the school paying out to send you to national competitions. When you aren't swimming competitively, you're swimming for fun - snorkelling off the coast, sometimes daring to go a little further out to sea.
>It's been over a year now since you moved properly into the dorms of Gensoushima High, and you've made a couple of friends in your time here - the loud-mouthed cat-lover Rin Kaenbyou, and idiot savant Utsuho Reiuji. You're scheduled to meet them tonight after school has ended.
>Which brings us to right now, in your Literary Appreciation class at the end of the school day, with Professor Knowledge glaring at you quite severely.
>"Well, Miss Tororetsu. I hope you had your fun with your little prank, because I certainly wasn't laughing."