So, I don't know where to start from.
I was looking for a teacher-student relationship, with some cohabitation and I found myself in an awkward position.

CHARACTERS:
Anri is just a normal university student (They'll make sure you got this part lol), there is nothing special about her although I liked her a lot, she's not as childish as characters in her position tend to be and she actually has some values. Watabe Atsuru (Kuriyama sensei) is one hell of a character though. This is spoiler free review so I'll not say much.

STORY:
The story follows Anri and Kuriyama's relationship, as different feeling progress and the obstacles they face, there are shocking twists and turns, some an answered questions that are up to the viewer to make up their mind about it which was nice. Overall, the story was not deep enough to explain some things and they glossed over some major changes that were central to the storyline.

Conclusion:
Wow, I feel weird!