Some sex scenes, thrusting is seen, mild nudity (rear nudity) but no visible nudity (breast, vaginal, penis).

Young teens show up in church to make sure there not invited there again by wearing a white button up shirt and they are not wearing a bra, nipples can be seen poking the shirt.

Infidelity is featured in the show.

Young teen removes her clothes and is only wearing a tank top and panties and you see her burns, marks and bruises on her body, the scene is not sexual in any way it is a sad scene.

A woman seduces her husband in the bathroom with her green heels on, rubbing his crotch area with them. They end up having sex but it's not shown onscreen. It cuts when he takes off his wife's robe and she is seen wearing a bra and he kisses her and that's when it cuts to another scene.

In one scene, two nude men were seen leaving. One of their bare buttocks were shown.

A female was seen walking out of the shower almost nude. No breast or buttock were shown.

A male kisses the female lead to "shut her up". An uncomfortable scene since its done without consent.

Only male full rear nudity in S1

A bunch of rich kid bully's burn another classmates arms and legs with a curling iron. They choke and punch the classmate in the chest to see if they would pass out, all shown on screen.

On screen disturbing violence on a young teen from other teens and adults as well.

A woman get hit in the face with a staple gun, a gash on her cheek and blood is shown on her face

Many violent and disturbing acts shown on screen. Some bloody and some that are gut wretching.

A young teen gets slapped in the face multiple times (the act is shown) by an adult in a office complex and everyone just stands there and watches the incident.

In another scene the rich kids break into the victims apartment and threaten to take her money, they tell her to dance but she refuses, they take a iron and make her dance with it by burning her legs, the act is not shown but we hear sceams and burning, later we see the aftermath on her legs of the iron burns as well as her upper arms of burns and bruises as well.

The victim is seen on the edge of a rooftop contemplating on committing suicide.

A random woman is seen getting beat by her husband and he also abuses there daughter for no reason, the victim is confronted by the woman later on and the woman ask for her help, to kill him.

English dub has a bunch of F bombs and other slurs and profanitys.

Excessive Korean slurs can be heard in the dialogue and script. Over a hundred curse words in Korean. The English dubbing also contains frequent F bombs in it.

Some smoking occurs in the show.

Drugs are briefly seen, and mentioned.

The show dwells deep into a woman getting revenge on her past school bully's, all the bully's acts are shown which are very disturbing to see, and there is some dark material found throughout the show, murder, greed, sex, domestic violence, rape.

The show is very intense tale about vengeance and justice.

Child abuse, neglect and power of money and injustice are all shown throughout the show.

Bullying and revenge are the main themes of the show, and all acts of revenge and bullying are shown.