A girl is sexually harassed by a teacher, there is nothing explicit but the man is stopped by another student.
On Episode 5, a man dissects a woman and her upper body and lower back can be seen briefly for a couple of secs, although it obscured by light.
A main female character has a rather large bust size. This is talked about throughout the series
In season one episode 15 there are some guys that beat some one up then one of the guys say whos next and the other one says the teacher that hits on students but it doesn't show anything and its not at all explicet really they only mention the teacher.
One or two shower scenes, brief upper Female nudity.