A male character asks the others what color a girl's underwear color is, though this is going according to his plan, not having anything to do with actually getting an answer.

A girl is seen with her shirt ripped open, partially exposing the sides of both her breasts for a large portion of the episode.

A female character is hinted at being an escort, it's later revealed that she is still a virgin but had gone out with an older man.

An image of two naked teens is briefly seen, nothing more than the boy's thighs and shoulders is visible, the girl is entirely censored. The boy has a twisted look on his face while the girl looks like she's struggling, implying it may be sexual assault.

The long hair girl is shown naked but sensitive parts are hidden and in another scene her half body is shown naked.

There is not a lot of violence in the show but a lot of disturbing references or threats that never actually occur.

Violence is actually quite mild up until last episode where in only 1 scene violence becomes moderate.

The main character breaks a finger off screen but the sound can be heard.

A character ties someone up and punches them repeatadly.

A lot of characters make frightening faces and are driven to insanity.

Yuiichi Katagiri, the protagonist of the series, can be quite frightening as the audience sees him show his true psychopathic and manipulative nature as the show progresses.

As most psychological thrillers, this one portrays its' characters, their personalities, motives and actions quite realistically which can make them more disturbing at times.

It is revealed that the girl with the short hair used to be an escort when she was in middleschool, implying that she was underage at the time. In the same scene she breaks down crying. This could be disturbing or upsetting to some viewers.