There is occasional sexual references.

A penguin loves looking at porn magazines. This is shown quite often but it is not too graphic.

A teenage girl tries to have sex with a grown man.

An adult woman tries to rape a teenage girl. Nudity is seen, but the sensitive parts (Nipples, Vagina, etc) are censored and not shown.

A teenage girl has sexual fantasies about a grown man.

The violence and gore is not graphic most of the time. It is rather abstract and surreal.

A man is stabbed, blood is shown.

A boys hand bleeds a lot from being wrapped around a metal wire.

Many children are seen being killed, this is not graphic but rather abstract. No blood or peril shown.

Near the end of the show characters are seen being cut by glass shards, the blood is shown as a red penguin in the shape of a rose petal. Abstract, not graphic.

A woman shoots ping-pong like balls at people, the ball explodes on the persons head but it does not cause harm, it removes the targets memory. Not graphic at all.

References to the 1995 Tokyo Gas Attacks.

A possessed girl usually insults people and uses moderate bad language.

"Bitch - Shit - Ass - Slut" is used infrequently in the sub.

Some characters are seen drinking in rare circumstances.

The show starts of light hearted but slowly becomes darker.

The final half of the show is very depressing and sad.

Lots of kids are seen being killed.

References to the Tokyo Gas Attacks.

Lots of symbolism inside the show which have a darker and deeper meaning.

Most of the people inside this show have a dark and depressing past.

The ending is depressing and heart-breaking. Not recommended for sensitive people.