>>50744966(You) are the gentle and brotherly friend of a young girl with odd horns who claims to be planning to take over the world one day. You're not totally sure what she talks about, but you often humor her and go along with some of her and her friends' silly games, and take care of her like a good nii-san would. You haven't the slightest clue that she is, in fact, actually part of a secret organization poised to overthrow society until the day you see the panicked news anchor's face cut out as an emergency warning appears on your TV screen...