Was Kodomo no Jikan controversial in Japan? I recently read the Kodomo no Jikan manga. Then I read about the massive controversy when Seven Seas tried to release the series in the US, explained in excruciating detail by Seven Seas's Jason DeAngelis here, and summarized here. I also read about Kaworu Watashiya's response, showing that she absolutely did not one bit understand why the series was so controversial over here, and that machine translation still has a long way to go, since Watashiya got all her information from reading American forums passed through Google Translate. (I was particularly puzzled by her comments, made with an authoritative tone, that "An adult, even a parent, who takes a bath with a child would be arrested" in the United States.) This source also claims the series is only regarded as "mildly risqu&eacute;" in Japan.

Maybe I'm just too American, but Kojikan seemed like it would be at least somewhat controversial in almost any country. Rin is only in third grade when the series starts, and the later chapters deal with issues like sex ed, masturbation, menstruation, and sexual assault in a fairly realistic way. Was there any public controversy around the series in Japan? Did it raise any eyebrows at all?

I'd appreciate sources. Obviously, if the answer is "no", there is no such evidence, so my threshold for "no controversy" is "nothing visible in a major media outlet". If the United Moral Guardians of Podunksville, Hokkaido published a statement condemning Kojikan, I do not expect anyone to find it. (Though good job if you do.) I'm asking for evidence of a reasonably high-profile controversy, around the same scale as the one surrounding the US release.
At least for anime version, there are some discussion and some TV station cancelled the series.

From Wikipedia:


  [...] two television stations — TV Saitama and Mie TV — removed it from their broadcast schedules. In an official press release, TV Saitama stated that their decision was heavily influenced by the then-recent capture of Takayuki Hosoda, a notorious Japanese child  pornographer who was revealed to be an elementary school vice principal.


I haven't read Kodomo no Jikan yet. In my understanding, Kodomo no Jikan contains two taboos. One is sexual interest from child, and the other one is love relationship between teacher and student.
First one is also controversial in Japan.
But for second one, it doesn't get any attention in Japan (if it's in fiction).

Other example of teacher-student taboo in US is Cardcaptor Sakura.
This anime was aired by NHK (BBC or PBS equivalent in Japan). It's not controversial in Japan.
But the NA version was heavy edited.
All love relationship between teacher and student was removed with same-sex love relationship.
(e.g. father and mother of protagonist met each other when the mother entered university that the father worked as professor.)