Cheon Ji-ae (age: 34, Wife of Dal-soo, a salaried office worker) / actress Kim Nam-joo
Cheon Ji-ae used to be the most popular girl in school.
But now she’s over 30 and married to a dimwit husband who also happens to be unemployed.
She thought she’d live a comfortable life by marrying a guy like him but she was totally wrong! But she can’t live like this forever!
If it’s too late to become a modern-day Cinderella, then she’ll at least aim to become a princess. And in order to make that happen, she’ll do whatever it takes to make her husband a success. She’ll even grovel and beg people to hire her husband...
She uses all of her charms and abilities to finally land a job for her husband at Queens Food.
But it’s just the beginning as she tries to get her husband rapid promotions within the company...

Yang Bong-soon (age: 34, wife of Joon-hyuk, a senior manager) / actress Lee Hye-young
She shadows Ji-ae and was like her servant when they went to school together.
When Joon-hyuk, whom she had a crush on, had eyes for Ji-ae, she carefully devised a plan to split them up. By showing her utter devotion to Joon-hyuk, she was able to get him to commit and marry her. But she still harbors an inferiority complex towards Ji-ae, who is after all her husband’s first sweetheart.
One day, Ji-ae moves next door to her apartment. She also learns that Ji-ae’s husband works under her husband. So she starts to get on Ji-ae’s nerves on purpose, knowing that she has the upper hand, and it makes her feel good. But then she notices that husband Joon-hyuk is transfixed with Ji-ae.

Eun So-hyun (age: 29, Wife of Tae-joon, the company president) / actress Sun Woo-sun
She is the youngest daughter of the founder of Queens Group and her husband is the company president of Queens Food.
She married her husband under an arranged marriage set up by her parents to solidify the merger of her in-law’s company with her family’s company. They have no sex in their marriage. At home, her husband shows no interest in sex but he carries on multiple affairs. So So-hyun has a sixth sense for sniffing out cheating husbands.
After having had enough of her husband’s infidelity, she shocks her husband with an explicit ultimatum.
She tells him that she’ll have a torrid affair with one of the employees that work at his company.
One day, she catches sight of an attractive employee at her husband’s company. He is no other than Ohn Dal-soo, a former college friend and husband of Ji-ae. He’s her target!

Oh Young-sook (age: 43, Wife of Hong-shik, a company director) / actor Na Young-hui
As the wife of the company director, she has a charismatic personality.
She’s also the chairwoman of the Pyeonggang Women’s Social Club within the company and the most powerful woman among them.
If she dislikes any of the members, then that woman will be ostracized by all of the other members and the husband of that woman will never get promoted as well.
But her rival and archenemy is So-hyun, the wife of the company president.
She finds her to be intolerable because she is younger and shows no respect. She also can’t tolerate the way that So-hyun criticizes her in front of the wives of regular company employees. So she is waiting for an opportunity to get even with her.

Ma Tae-joon (age: 35, So-hyun’s husband/ company president) / actor Yoon Sang-hyun
He was very much in love with another woman before he was forced by his parents to marry So-hyun in an arranged marriage. He knew So-hyun since they were kids and never found her adorable or attractive.
Rebelling against his parents, he carries on numerous affairs while married to So-hyun but then...
He finds himself attracted to Ji-ae who is devoted to her husband and will do anything to make him successful.

Kim Hong-shik (age: 47, Young-sook’s husband / company director) / actor Kim Chang-wan
He is the company president’s right-hand man and handles all of the company affairs, including the slush fund set aside for bribing politicians. But he also keeps records of every impropriety committed by the president.
He plans to blow the whistle one day to force Tae-joon to resign in disgrace.

Kang Joon-hyuk (age: 35, Bong-soon’s husband/ Senior manager) / actor Choi Chul-ho
He is very ambitious and aims to reach the top executive position in the company. He rams through projects through sheer determination.
He was given big promotions for someone of his age. He is a demanding boss who makes employees cower in fear.
Most of the time, he looks heartless and cold.
At first, he looks down at Ji-ae, his first sweetheart, when they meet again but in reality, he finds it hard to control his emotions that he feels for her.

Ohn Dal-soo (age: 32, Ji-ae’s husband / Unemployed->Salaried worker) / actor Oh Ji-ho
The youngest child in his family. Lacking in determination and willpower. Indecisive.
But he has an excellent memory and gained admittance to Seoul National University, the top university in the nation. Nevertheless, he has a hard time holding onto jobs or even finding one. When Ji-ae threatens to divorce him unless he gets his act together, he takes a job a Queens Food that she picked out for him.