Yeah. I remember the To Love Ru: Darkness fiasco. Quote from wikipedia -
In 2012, To Love Ru Darkness was reviewed by the Tokyo Metropolitan Assembly to see if it violated their newly passed controversial Bill 156.] This was after they had received a phone call from a parent who discovered a To Love Ru Darkness book while cleaning a son's room.[85] The parent did not like that there was frontal nudity of a female character, including her lower body. At the meeting on April 9, 2012, they decided that while the book did include the aforementioned nudity, it did not violate the new ordinance.