Perverted humor occurs throughout the anime. There are various references to having sex with anybody, mostly coming from two main characters who are portrayed as perverts, mostly in the first two episodes.

In episode 1, a man is raped by another man. This is mostly implied, but what is seen is played for a laugh. Earlier this episode, several women are seen in bikinis/swimsuits.

In episode 2, a man is forced to take a sh*t in front of several people. A post-credit sequence shows several men making out hilarious references to the different sizes of each others' penises.

In episode 4, women are shown in swimsuits, but one woman is shown wearing a thong. A man attempts to look at a woman's back to see if a certain tattoo is on it.

Episode 5 has peeping as a central theme, at least through the first half of the episode. When a woman comes into a room full of boys, a naked woman with breasts visible can briefly be seen on a TV screen, implying a porn video has been playing. A female teacher appears to be a slut, hence how she's dressed.