I incidentally stumbled across these two images and got interested on which series they were from:
And so I investigated. The first bell rang after I saw it was produced by J.C.STAFF, seeing that usually I like all of their works, the second when I read the seiyuu cast (Nakahara Mai, Tanaka Rie, Noto Mamiko just so to speak). But my expectations went high when I saw the director's name, Kasai Kenichi (Honey & Clover, Nodame Cantabile), probably along with Shinbo the one whose works I like the most.
What to say, I don't even know a bit about the story (aside it is a harem), but I'm already sold, let's see what Kasai-san will pull out of this. I'm very very confident though.