Azumanga Daioh (2002-2002)

Contains infrequent innuendo (such as characters speaking of their breast size), and there is one character, a teacher, who is depicted as a "creep" with a penchant for young girls. In one episode, he becomes obsessed with trying to voyeuristically view his female students in swimsuits.

His actions are generally harmless though, and there are no explicit references to him actually being a pedophile.