A few characters arrive in boxes on Earth completely naked. However, their bodies are entirely nondescript, with only their bare buttocks being detailed/infrequently depicted, and these scenes are entirely nonsexual.

Two middle school boys suspect one of their classmates is in a sexual relationship with their teacher or is a prostitute, though they're not entirely sure what sex is (they only get as far as referring to the 'boob touch' before getting lost as to 'what comes next'). This is proven to be false.

A middle school girl is accused by her mother of "doing lewd things" and "selling her body", which she says she doesn't know the meaning of.

Mild comic violence, which includes slapstick and fight scenes. Fight scenes often have characters exclaim 'owwie!' after being hit, establishing their comedy. Rare bloodstains are visible after slapstick.

Occasional use of mild to moderate coarse language ('damn', 'hell', 'ass', 'crap', 'bastard', one use of 'bitch') in the official English dub.

There is one non-sexual use of "f**k" in episode 2 (Funimation English dub version).

Adult characters are regularly seen drinking and smoking cigarettes. Intoxication is infrequently depicted, though characters question more often if they're drunk based on their strange surroundings.

A number of scenes take place in a bar where a middle school girl has been blackmailed into working as a bartender. She is said to make great drinks, though she never consumes any alcohol herself.