There is talk about sexual stuff among teens but it doesn't show anything.

It is shown that Chad and another girl are on a scooter (both naked) but nothing is show.

This show can go to mild to severe very quickly.

At the very beginning of the first episode, chad has his braces removed blood is seen in is teeth, there's also another scene where chad slices his thigh with a real sword blood is shown pouring out the pant leg (played for laughs.)