[color=red][edit by mod,Warning: possible spoilers][/color]
I have read 30.5 chapters so far, and I own the first 4 japanese volumes.
Lets start by examining WHY this series is so controversial. The main character Rin Konokoe has a crush on Aoki-sensei her Teacher. The problem is less about how she feeels about Aoki and more about how she expresses her affections. Rin is what some people would refer to as precocious. Specifically she approaches Aoki in a sexually inapropriate manner, she does everything she can to make it clear to him that she wants to have a intimate relationship with him.
This is about where most people's brains shut down and they either lose interest or start attacking the premise without knowing the story.
Life imitates art which imitates life. Rin gets the only real molester in the manga incarcerated right at the start of the series. It happens to be her principal, the real irony is this series was dropped from several stations in Japan and censored like crazy by the one that did broadcast it because a real principal was found to be a molester at about the same it was to be aired.
What most people miss is that Aoki really cares about his students. Despite Rin's advances, he focuses on being thier teacher. I can admit that I have seen a few things in the manga so far that probably would shock some people. For instance, Rin has a realy bad habit of kissing Aoki and trying to flash her panties at him, but aside from the principal who wound up in jail right at the start, I have not yet seen an adult act sexually towards any of the children. Anything that does happen is initiated by Rin and is always turned down.
There are definitely cultural elements that will confuse non-japanese, but this is an excellent series that should not be over looked because of the surface vineer.
All the criticism directed at this series that I have heard and read so far comes from the same mindset that thinks the human body and sexuality are "dirty", those individuals will see things there that do not exist. As a result our cultural exposure is more limited because that very vocal minority usually tries to ban what they do not want to read themselves
The unfortunate thing is there is not a reasonable distribution method available to provide manga to adults when the censors decide to be our moral guide.
I have read thousands of manga, but this series is one of my favorite. Don't judge this book by it's cover or on peoples comments alone. Read it with an open mind and decide for yourself. I think it's funny and in a quirky way somewhat romantic. Poor Aoki actually has a thing for a fellow teacher who is "considerably well endowed", but every time they almost wind up together, in comes Rin who spoils it all.
It is worth the time to really read it.