Mida was... quite the teacher... she usually seduces the male student's and it worked everytime since most of the flmale students find him attractive... Taro didn't.

She was intrested in him because of him being... 'hard to get' and always tried to seduce him everytime their alone. But Taro was clearly uncomfortable.

Yes... Mida knew Ayano since she once met her... with a bruised ankle at midnight. They didn't do anything weird when Mida brought her back to his house but Ayano was very cautious when she was around her and that made Mida... amused