Well, this is a very typical shoujo manga. Hibino is interesting in the beginning, ordinary "old-fashioned" girl and all. She can be strong-willed, but very sensitive.
Kyouta...well, ok he's a BISHIE playboy blah blah blah has a bad history with women but since Hibino is very different compared to the others, falls in love with the ugly duckling who transforms into a pretty princess. They obviously have problems and ups-downs in their relationships...
So.
The art is good, characters are not too bad and the story is sort of...random.
Its still ongoing, a new character has come in, so I'm only reviewing whatever I've read till now.
If you want to read a shoujo manga with a hot guy, romance and a relationship, go ahead. It's not too bad, you can read it to pass time or something.
I'll rate this as a SHOUJO (=romance+school life) manga, even though I'm a girl I'm generally into mangas with a good storyline, plot, some action, something that really makes me think. I read this manga just like that, so I'm not going to be too harsh.