Houston... we're going in circle...
Anyway, the people saying she's not tsundere is basing their assumption on an anime that has only showed 3 episode. On the other hand, the people who's trying to say she's tsundere is basing their answer through the game... That's how it goes... If KyouAni erm... KyoAni ditches her tsundere nature then fans might... Hmm... no comment...