There are light commentaries about puberty and the main character feeling nervous when touching a girl.

A girl that has passed through puberty takes off her clothes in front of a girl that hasn't. The grown girl states that she feels happy to see the nudity of the other one. Nothing happens besides them seeing each other naked.

The show is about children slaughtering grown-up humans.

A child shots an adult multiple times, splattering their face in blood.