I have yet to watch the anime or read the manga, but it looks the creator of the manga series Please tell me! Gaiko-chan has been arrested. According to the Kyodo news, the Aichi Prefectural Police arrested Kenya Suzuki. The manga creator went missing and it was reported that he was importing nude content of children from Germany. In the testimony, he commented: “really wanted to obtain nude photos of children from abroad which are not readily available in Japan”. Japanese police confiscated a total of 46 books and publications of child pornography. In ANN, manga creator of Battan reported on Twitter that he disappeared on December 13 and then later found the next day.
source:
Matt-in-the-Hat 
What is it about these manga and anime authors and child porn? I find it very disturbing.
It’s very disturbing indeed. Not sure if it’s true, but I heard an online rumor that he was using biology and anatomy books for references to draw children. Again, that’s what I heard.
That would be pefectly reasonable. But I can’t imagine that biology and anatomy books would count as kiddie porn.
Japan has very weak porn laws compared to the US and only instituted them recently because of international demand. The culture seems like it is more accepting of it. The guy who wrote Ruroni Kenshin would never have worked in the industry again if he had been a US author. He’d be a registered sex offender.
At least in the US, ordinary drawings do not qualify as child porn. Even photos of nude minors do not automatically qualify as child porn. It is what the children are photographed doing that makes them porn.
Yeah it doesn’t make sense. According to the sites, the books was confiscated by the police. It also seems shady that would disappear for no reason. I am still surprised despite what happened to Watsuki and his child porn crime, they still let him continue on the Rurouni Kenshin series. Just like you said, if this was the US, he would never get this second chance to go back to work,