I picked it up because I wanted a light, enjoyable read but I ended up hating nearly every second I spent on the series after about the 10th chapter. By then, though, I was committed and decided to finish it anyway.
There is little to no character development, everyone is just the same as they are in the beginning even though a very long time passes. Relationships are very forced to the point of being painful. The content of 10 volumes could be condensed into 1 without even being rushed, which makes about 9 of those volumes filler fluff. The art's okay at the very best but what made me begin to dislike it is the deadness in their eyes. They're so lifeless. Then the characters are far too perfect, like their flaws are superficial and subject to change at any time. Perfect characters are hated characters. People have flaws, often very deep flaws that cause others to hate them, so I believe characters should display these traits as well.
The story was average, slightly worse than average actually. Most shoujo like this at least have some development. The pacing was very slow, though I don't mind as much of life plods along as well.
Anyway, I believe the mangaka could have done much better with the premise, which is why I'm giving this series such a low rating. Originality is an absolute must when dealing with such a cliched plot. I look forward to better series from this author, though my expectations aren't very high after reading this.