This is one of those mangas that the more you read it, and the more you think about it, the less you like it. I mean, to tell you the truth, the only reason why I liked it to begin with was because the main female protagonist, Ai, was actually kinda hot, and because of the bewbs. ^_^

Lemme break it down.

Story: 5
It actually started out pretty well, in my opinion. It had a strong opening and I actually enjoyed how Ai went from being a jimi (homely) to being a beautiful young lady. In fact, I loved it until the end. Then, after the end, I decided to go through it again. This time, I realized just how stupid and superficial the plot truly is. But I give Izumi-sensei kudos for being able to hide it so well (by inserting bewbs somewhere in the middle).

Art: 9
I actually did quite like the art. It was very unique and that's pretty much all I can say, simply because I'm not that good at criticizing bad art and praising good art. Although, I must say that I did like the shading on the bewbs. And yes, I am inserting a random comment about a woman's breasts at the end of each paragraph.

Character: 6
Sou is a douchebag. I mean, he could honestly care less if Ai fell off a cliff and was hospitalized for the rest of her life. He'd just move on and find another girlfriend. After all, he is a total bish. That's what girls are into these days, right?
Ai has no self-confidence. I understand that that's supposed to be the theme of this entire manga, but seriously! Make her at least a little interesting.
Yuichiro is sorta different. He's actually kinda funny and somewhat interesting. Yes, I understand that since he's a supporting character he has less personality than Sou (which only serves to make the series worse).
Mina is probably my favorite character in this whole thing. Even though she isn't really hot enough to be mai waifu, and she's a bit of a bitch at times, and extremely creepy, she actually has a likable personality compared to Sou, and she isn't simply a vapid and uninteresting character whose only purpose is to doubt herself and have big bewbs.

Enjoyment: 7
I actually enjoyed this, to tell you the truth. I probably wouldn't have enjoyed it so much if I had read it now, but I still actually had fun the first time I read through it. Even though it had a stupid plot, Izumi-sensei figured out how to distract me from that just long enough to keep me interested. I also enjoyed seeing the bewbs.

Overall: 6
Two years ago, I probably would have given this a 10. After two years of thought (actually, I made up my mind after one week, I just hadn't gotten around to posting a review) I have decided that this manga is most certainly not the best that I've read. Also, the bewbs only lasted for one panel and they were somewhere in vol. 4 (I don't know what page exactly and I have to go, so I can't be bothered to check).