Ep.6: Apparently the more some of us complain about the girls being sadists, the more they inject it into the show. I used to really like Aiko, but these past couple of episodes she's been kind of a bitch. =/
Sure she acts friendly and flirty, but that's all to get the boys into trouble. "Oops! Sorry I got you tortured again!! Wanna see my panties in front of these jealous, crazy sadists?? Teeheehe."