Early on in the show, Yumeko is cornered and is told to strip, she only takes off her jacket and nothing is shown.

A lot of the girls (especially Yumeko) are very clearly pleasured by the act of gambling and women are seen grabbing their breast (but not frequently), or making a face of pleasure during the game.

Fanservice is not very frequent in this show and when it does occur, it doesn't last too long.

An abstract vision is shown of the aftermath of a gunshot to the head, the bullet hole isn't shown, but you do see tremendous amounts of blood pouring down her face.

In likely the most graphic scene of the series, a girl is seen ripping all of her finger nails off at once with her teeth, blood is seen going everywhere, and her nailess fingers are shown

Midari is frequently seen holding a gun.

In Season 1, Episode 7, a girl cuts out her own eye with a fountain pen. Blood is seen spewing on the ground and on her hands. Not too graphic, but can be upsetting and disturbing to some viewers.

DUB:A few uses of Hell and Damn.

In the anime, the F word was used 1-2 times throughout the whole series. As well as the A word used a couple times, B word/S word too. Swearing ranges from mild-moderate throughout epsiodes.

The anime only has 2 uses of the F word in total, and same with the S word and B word.

None.

It can be intense to some when the characters are in a gambling match since they bet so much. Fine for ages 12 and up.

Characters have disturbing faces throughout the show, in every episode. Some people also bet their lives on the lines.

One of it's most disturbing/frightening scences is where a girl rips her own nails off, with blood spewing out.

If this series were to be rated by the MPA it would be PG-13 for violent content/images and for language.