Around 4 sex scenes, they are short but show female breasts.

Kissing scenes between adults & Kissing scenes among high school students including scene of sexual activity in bathroom between 2 males and 1 female together with female high school student getting naked. Prolonged french kissing scene between two young high school girls.

Several close ups of women changing, at times revealing their chest/nipple area

A naked male pupil is hosed down with cold water as a punishment. There is full rear male nudity including buttocks.

Full male rear nudity as a teacher takes a shower.

There is an inappropriate scene of a young male student being punished after being troublesome in class. The boy is shown completely naked from the rear against a wall outside the school whilst being hosed down with water.

Dead people shown.

Images of a dead hanging girl with bleeding eyes throughout the series, including in some jumpscares.

There are some scenes with gunshots and close ups of bullet wounds

There is a graphic attempted suicide (wrist cutting) where the person writes words with their blood.

In English subtitles: multiple instances of the F-word throughout, B-words, S-words, student who shows his hands displaying the middle finger, slut/whore, d**k , hell.

Teenagers drink alcohol, get drunk, smoke. Adults in position of authority smoke and drink.

There are jumpscares throughout the series

There are lots of scenes of teachers abusing the teenage students (head shaving, solitary confinement, emotional abuse) which can be very intense.

Some characters see disturbing visions which the other characters don't, which may be frightening to watch, especially for anyone who experiences hallucinations/psychosis themselves.