In episode 11 of the first season of the anime, there was a flashback where it was shown that little Toshinou Kyouko was nothing like the current Toshinou Kyouko — she was quiet, shy and even had less presence than Akaza Akari. Yet, the current Toshinou Kyouko is nothing like that.
What happened between the time when she was shown as a quiet and shy little girl and the current her? Has the author ever being asked about this?