衣更 透子

Touko is the principal of the academy and knows Daisuke since he was a kid, she's very serious and puts her job in the first priority, she's very strict with Daisuke and tries to teach him how to be a proper teacher.

Back in the old days Touko used to be a kind Onee-san who took care of Daisuke and spent time with him, the change in Touko's personality shocked Daisuke awaking in him a feeling of loneliness.

However, later it's revealed that her strict personality is just an act of Touko who wants to make Daisuke into o proper ***** and she can't show her true face to him despite the tough discipline he was put into.