Chio is an ordinary high school girl. Kind of... She's a hardcore gamer and she sometimes tries to apply what he does in games on her way to school. She's weird, yeah. Her friends aren't any better. Manana is her best friend who's just as bad except she doesn't game. Yuki is an exhibitionist that wears her track club uniform to school because it's "exciting". Also, everyone in the show is kind of an asshole. Which is why it's funny to watch. Everyone gets in some sort of weird predicament mostly because of their own actions. I thought it was funny as hell.
PS: The two .exe files are games that were on the BDs. I can't seem to pass the first level. Also, they seem to be the same game, but were labeled differently and have a different file size. But since I can't pass the first level, I don't know.