The art (and in particular the heroine's face) brings to mind Homunculus. But with a genre Homunculus will probably never touch. And I got to say, it was refreshing to see a deliberate and slow-paced guy like the sensei. Usually it would be a cheap 'I know your hidden hobby' blackmail, where the girl's embarassing secret is enough to allow herself to be raped by a guy she hates. The fact that he actually wormed his way into her, and got her to think this is all an innocent and consensual affair, and got her addicted to the point she quit her passion, makes it amazing. It's rare to see this type of slow corruption. Really want to know the artist's name, and really looking forward to his next work.