I was hooked when I started reading after reading a bit more it got even better. I don't know if it's just me or not, but I only cared about the first teacher and students' story. I just found it more interesting (probably just me). I just didn't find the other pairs as enjoyable as the first one, after I read the first one I got kinda bored of it. I do feel like that the ecchi scenes were very well drawn (I don't know if the artist use to draw doujins or something, but they're good doujin quality). I feel like they should havegiven each couple more episodes. Overall this manga was very enjoyable in most of its moments, its characters were pretty good, and as I said before, I personally really liked the art style.