Maybe I would have liked it more had I watched it when I was younger, but as a 23 year old myself all I see is a confused youth being taken advantage of by an authority figure. Imagine this has the genders been reversed. I am usually very into onee-san romances like Anago, second love, etc. Though I'm not a fan of it I don't really mind student teacher romances either. But in Majo no Jouken, somehow the relationship felt predatory. Usually I prefer if the younger guys pursue first. In this one all I see is an adult misguiding a teenager. Maybe if the boy seemed more aware, of if the female teacher showed some restraint. This is not a good Ane-romance.
https://www.youtube.com/playlist?list=PLIDOdhmmQ6-z_8XGfIlbSY78OQzbLGtOF
https://www.youtube.com/playlist?list=PLIDOdhmmQ6-w-6k-QufpcKZaptl_rRJ9p