There's a scene where a girl says that her friend's boobs are bigger than the ones from another lady.

Female characters wear skimpy outfits that accentuate their breasts, buttocks, groins, and legs.

Several times throughout the series, female characters are either in suggestive and revealing clothing, or in underwear. There are times when female and male characters are nude, but it doesn't show any nipples (with the exception of one male character) or genatalia. Cleavage is present throughout the series. There are several sexual innuendos, insults, and references. Wouldn't recommend for anyone under the age of 15 unless they're highly mature.

A clothed woman spanks a fully naked girl in her bare butt (more terrifying than sexual)

Violent battles with hand-to-hand combat as well as stabbings. Injuries bleed profusely and leave scars, as when a main character's eye is impaled, forcing her to wear a patch. Some people are killed. Many characters take sadistic pleasure in inflicting harm on others.

Fist and sword fights are commonplace. Characters are visibly bruised and bloody in the aftermath.

A garment that looks like a schoolgirl uniform is powered by the wearer's blood, somewhat in the manner of a vampire.

A character has her arms sliced off. While she panics for well over a minute, massive amounts of blood keep geysering out of the stumps

Fuck, shit, bitch, bastard, hoe, and cock are used infrequently alongside lesser profanity like ass.

In one scene, a boy refers to his highly energized state as like "being a junkie on crack".

Tobacco use.

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Themes of torture and humiliation may be disturbing for some sensitive younger viewers.