Moon Dong-eun

Moon Dong-eun was horrifically bullied by a group of her classmates. After dropping out of high school, Dong-eun has spent years preparing for revenge. After all, revenge is a dish best served cold.

Park Yeon-jin

As a teen, Yeon-jin was the most conniving of Dong-eun’s bullies. Her family's wealth ensured she never got in trouble for her crimes. As an adult, Yeon-jin is a popular weathercaster, married to a powerful man with an adorable daughter. But Yeon-jin has no idea Dong-eun has been tracking her — and her family — for years.

Joo Yeo-jeong

Medical intern Joo Yeo-jeong meets Dong-eun when they’re both inpatients at the hospital where he works. Absorbed by her revenge plot, Dong-eun is wary of his privileged life. Despite it all, their paths continue to intersect as she gets closer and closer to taking out her enemies.

Jeon Jae-joon

Jeon Jae-jun was another of Dong-eun’s bullies. Now he’s all grown up and owns a ritzy golf club. Jae-jun is still just as arrogant and insufferable as he was in high school — but now it’s Dong-eun who has the power to destroy his life.