Ayase is probably the only character I liked. The first 2 episodes, he is a little 2-dimensional character wise. His character really starts to show in the 3rd episode, and it's an improvement. The rest of the cast is rather static and bland, with little to go on. The relationship between Ayase and Kanao is a little odd with a D/s vibe to it, and is definitely a little extreme.
While the sound and animation are decent, the bad plot and bland characters drag down the rating.