Revolutionary Sisters

While working on the job at a construction site, Lee Cheol Soo gets an unexpected letter from the court, a divorce petition by his wife Oh Maeng Ja. Although he tries to find and talk to her, she is nowhere to be found. What's worse is that all of his three daughters are against him. Later, he makes up his mind and begins to write his response.

The three daughters rush to the hospital after hearing their father had died. However, they see him alive but unconscious. Instead of feeling relieved, they only speak ill of him. Later, their aunt tries to tell her three nieces the whole truth about their mother but gets interrupted by Cheol Soo. Meanwhile, Gwang Sik catches her fiance cheating, and Ye Seul struggles with Tae Ri's kids.

Oh Maeng Ja's death becomes a murder investigation, and the detectives suspect each and everyone in the family. Detective Seo questions the three daughters only to be astonished at their testimony, pointing their finger at their father.

Gwang Sik returns but gets taken in for questioning as the prime suspect in her mother's murder. After getting questioned, she barely manages to step foot in her sister's house. Later, she looks for a place to open a restaurant. Meanwhile, Byeon Ho sneaks out to tend to his son no one knows about, and a woman named Taeng Ja gets released from prison.

A witness in Oh Maeng Ja's death claims she saw a woman at the scene of the crime, and all three sisters get taken in for questioning again. Cheol Soo, who learns of the witness' statement, urges Bong Ja to come clean to save his daughters, upsetting her deeply. Meanwhile, Bong Ja's sister shows up at her fish store, and Gwang Tae goes to meet the mystery man she's been flirting with online.

Cheol Soo moves into Bong Ja's basement, but his suitcase he had locked up securely down there already got the attention of his daughters. Although he stops them from seeing what's inside, it only makes his daughters suspect him even more. Meanwhile, Gwang Sik begs her still legal in-laws to support the divorce she desires with Pyeon Seung after seeing their wedding photos plastered all over her diner.

Pyeon Seung refuses to settle with Ye Seul at the police station, but Gwang Sik gets him to change his mind. Later, Ye Seul says a few things to Gwang Sik after seeing her and Pyeon Seung acting like they were getting back together. And ultimately, their relationship becomes sour. Meanwhile, Gwang Tae borrows money from a loan shark again.

Byun Ho listens to what Bong Ja and Gwang Sik have to say. Regrettably, he ends up having to give up on Blessing. Gwang Nam takes her two sisters to break into Cheol Soo's bag with the lock, but Gwang Sik can't go through with it. Meanwhile, Ye Seul tells Bong Ja that he will move out at the end of the month just as Gwang Sik starts to see something in him.

Maria drops the bomb on Byun Ho, and Gwang Nam collapses to the ground. Now that she knows about his baby and Maria, she doesn't know what to do. Neither does Byun Ho. Meanwhile, Gwang Tae tries to get back at Ki Jin, and Ye Seul's female companion staying with Ye Seul gets on Gwang Sik's nerves.

Gwang Nam stuffs her face with food in anguish, and Byun Ho tries to stop her. Although he tells Maria to stay away, she sends a text message to Gwang Nam, making it worst. Bong Ja kicks out Taeng Ja for selling the diamond ring Dol Se bought for her, and the detectives keep at Maeng Ja's murder. They think they have the culprit, but without hard evidence, they stand at bay.

Bong Ja gets arrested. Gwang Sik tries to find her a lawyer while Cheol Soo and Taeng Ja believe Bong Ja was behind it all. Byun Ho stays at an officetel away from Gwang Nam. However, it only triggers her to visit and confront Maria again. Meanwhile, Dol Se ditches going away and tells Bong Ja he'll save her.

Dol Se puts on makeup and confesses that he's the culprit. He gets Bong Ja out of police custody and takes her place. Cheol Soo tries to talk some sense into him, but Dol Se has already set his mind on living the rest of his life behind bars. Meanwhile, Byun Ho shows a picture of Blessing to his mother, who then rushes to see the baby and Maria.

With new evidence in Oh Maeng Ja's murder case, the three sisters finally get to know what their mother was really like. Their aunt further tells them the whole story, changing their demeaning view of their father, Cheol Soo. Guilty and ashamed, each one of them decides to become a better daughter. Meanwhile, Gwang Nam tries to mend her relationship with Byun Ho.

Bong Ja buys Dol Se some underpants and a toothbrush kit, and he takes it as if she didn't want him to leave for the island. Gwang Sik goes over to Ye Seul's room for some kimchi in the middle of the night, but Gwang Tae senses something between them. Meanwhile, Ki Jin goes on a blind date but can't get Gwang Tae off his mind. Later, Gwang Nam begs on her knees for Blessing.

Byun Ho tries to explain what Gwang Nam saw, but it does no good. He gets locked out of his house again. Ye Seul, still stuck with the twins, finds out where their mother is and heads over to see her with Gwang Sik. Meanwhile, Pyeon Seung secretly takes pictures of them together, and later, Gwang Nam meets Byun Ho with divorce documents..

Cheol Soo charges at Byun Ho in public and almost head-butts him for what he did to end his marriage with Gwang Nam. He gets worse after learning she already filed for divorce. Meanwhile, Gwang Nam takes what money she can get from Byun Ho and moves out of the house into a goshiwon. However, she tries to hide it from her family.

Cheol Soo has a hard time accepting Gwang Nam's divorce and gets angry with all three of his daughters. No matter how hard Gwang Nam tries to appease her uncompromising father, he won't give in. Meanwhile, Gwang Nam gets pushed to the edge after receiving a call from Maria and heads to see them with an envelope full of money.

The family can't believe Gwang Nam returned the money she got for the divorce back to Byun Ho and starts to think she's still hung up on him. Nevertheless, a phone call for a job gets Gwang Nam's spirits up. However, her first day couldn't be any worse. Meanwhile, Gwang Sik celebrates her divorce with Ye Seul, who holds his abdomen secretly in pain.

Shaky at the wheel, Gwang Sik rushes Ye Seul to the hospital. Luckily, she gets him there in one piece to undergo an appendectomy. While he recovers, Dol Se sees the suit thrown on the ground and calls Ye Seul. Meanwhile, Byun Ho tries to return the money to Gwang Nam, Bong Ja wonders why Dol Se hasn't called, and Chairman Hwang asks Gwang Sik out for dinner.

Ye Seul finally passes gas, and Dol Se invites him to stay for dinner. However, they get into another argument, and Ye Seul ends up storming out. Gwang Nam starts a part-time job, and coincidentally, Maria and Byun Ho's mother walk into the store. Watching them giggle and enjoy themselves makes Gwang Nam realize what a bad wife she was and begins to drink.

Byun Ho rushes to the hospital to see Gwang Nam, who fainted after getting her pregnancy tested. He clings to her, but she pushes him away. She runs away from the hospital in despair. To make things worse, Maria finds out about the money covering her rent and calls her in the middle of the night. Meanwhile, Ye Seul makes up his mind to pursue music again, and Dol Se steals Bong Ja's heart.

Gwang Sik and Ye Seul keep getting caught together and find it hard to hide their relationship. Gwang Sik denies the relationship being anything more than friends, but it only upsets Ye Seul. Meanwhile, Dol Se shows up in the middle of the night asking for Cheol Soo's blessing regarding his love for Bong Ja, and Bong Ja overhears the whole conversation..

Chairman Hwang proposes marriage to Gwang Nam and asks for her answer as soon as possible. As they leave the restaurant, they run into Byun Ho and his new family. Meanwhile, Ye Seul moves out of the building, and Gwang Sik gets her chance to stop him. Later, Bong Ja and Dol Se go out on a date.

Gwang Nam shares the news of marriage to Cheol Soo and later introduces Chairman Hwang to him. Gwang Sik tells her family about the 50,000 dollars Ye Seul paid Pyeon Seung, and they all give her the go-ahead for dating him. Meanwhile, Dol Se decides to work for Pung Jin as a debt collector, and Maria goes on a diet. Later, Bong Ja introduces Dol Se as her husband-to-be to the girls.

Byun Ho tails Chairman Hwang believing that he is up to no good. He pleads with Gwang Sik to stop Gwang Nam from marrying Chairman Hwang, but it's no use. Without any options left, Byun Ho resorts to an investigator for help. And what he finds out has Byun Ho running to Gwang Nam on the night before her wedding to warn her what he knows.

Gwang Nam recovers from nearly drowning herself in soju and tries to explain herself for what she did. After seeing the state of Gwang Nam, Cheol Soo prays to the skies for a miracle as he buys lottery scratch tickets. Meanwhile, Byun Ho keeps his word and manages to find evidence to prove Gwang Nam's innocence, and Ki Jin borrows ten grand from his brother and gives it to Gwang Tae.

Byun Ho is left alone with Blessing after Maria's death and a quarrel with his mother. With Blessing crying in his arms, he determines to tough it out on his own. Bong Ja gets dressed up to meet with Dol Se's son, but Gwang Sik finds out about it. Meanwhile, Cheol Su witnesses something fishy at his new job site, and Gong Chae realizes who Taeng Ja is.

Byun Ho continues to struggle with Blessing. Luckily, his mother returns, and they reconcile. While visiting Maria at her resting place, Byun Ho runs into Gwang Nam. She finds out about Maria's death that rekindles her thoughts and feelings for Byun Ho. Late in the night, she gives him a text. Meanwhile, Ki Jin manages to change Gwang Tae's mind and shows her his monstrous house.

Cheol Soo and Dol Se attempt to dig up the money they saw buried in the ground, but they almost get caught. Luckily, they make it out alive. Unlike Dol Se, Cheol Soo won't give up and even flaunts about the riches to come. Meanwhile, Ye Seul finds out why Gwang Sik broke up with him and tells Dol Se he can never marry Bong Ja.

Cheol Soo attempts to steal the money out of the ground on his own. Only this time, his fan club, Gwang Nam and Gwang Tae, secretly follows him from behind. Unfortunately, Gwang Nam falls into the hands of the thugs, exposing Cheol Soo's robbery. Later, Bong Ja tells Cheol Soo she called off the wedding, and Ye Seul goes for an audition.

Ye Seul gets rushed to the hospital with serious injuries enough to lose his ability to sing. When he comes to, Gwang Sik is there by his side. After almost losing his life in the accident, he decides that Dol Se should be with his true love and lets him know of his mother's last words. Meanwhile, Gwang Nam musters up the courage to see Byun Ho's mother.

Gwang Nam still tells her family adamantly that she's getting back with Byun Ho even after witnessing Byun Ho's mother detest the idea in front of them all. With everyone supporting her, Cheol Soo thinks deeply about it. Meanwhile, Gwang Tae tries to speed up her marriage arrangement with Ki Jin and takes him to a motel.

Byun Ho's mother visits Bong Ja and demands to know where Blessing is. However, she ends up crying in front of them, and Bong Ja tells Gwang Nam about it. Gwang Nam makes up her mind to take Byun Ho and Blessing back to live with Byun Ho's mother, including herself. Meanwhile, Cheol Soo finds out the truth about Ki Jin and refuses to accept him as his son-in-law.

Taeng Ja gets tempted to follow Baek Won to China, and Gong Chae receives the DNA testing result between him and Ttu Gi. Meanwhile, Ki Jin meets with Cheol Soo, hoping to persuade him to approve of his marriage to Gwang Tae. Later, Dol Se gets angry at Gwang Sik for her new relationship as he tells her about Ye Seul.

Upon hearing the news of Gwang Tae's pregnancy, Pung Jin gives his approval for the marriage. Gong Chae brings over a bunch of gifts for Ttu Gi and gets emotional watching her cry about wanting to see her dad. Meanwhile, Gwang Sik and Ye Seul decide to keep his family situation a secret from Cheol Soo for now. Later on, Cheol Soo panics over a missing teddy bear.

Gong Chae declares that he can't let Taeng Ja raise Ttu Gi on her own, and Taeng Ja considers running away to China with Ttu Gi. Meanwhile, Cheol Soo goes to see Dol Se the night before the wedding only to find out that Dol Se is Ye Seul's father. Cheol Soo flies into a fit of rage and tells Gwang Sik to cancel her wedding.

Gwang Sik feels upset that her marriage lacks in many ways compared to Gwang Tae’s. She tries to tell Gwang Tae to watch her behavior, but things don’t go as she wants them to. Meanwhile, Gwang Tae declares that she will change the way things are done at Pung Jin’s house which bewilders Sa Chae and Pung Jin. Also, a strange man continues to follow Gwang Tae around without her noticing.

Taeng Ja is devastated to find out that Dae Bak is the son of the rice cake store owner, and she decides to send Ttu Gi to Gong Chae. Gwang Nam is upset as she feels left out of her family, and she wants to talk it out with her sisters. Meanwhile, Gwang Tae can no longer stay at home and kill time by doing nothing, so she visits her friends at the gym secretly.

Both Cheol Soo’s family and Pung Jin are furious at Ki Jin and Gwang Tae for lying about Gwang Tae’s pregnancy. Since it was the only reason why Pung Jin approved their marriage, he calls it off and sends her back to her home. Meanwhile, Gwang Sik is not happy with Ki Jin and Byun Ho for being insensitive towards Ye Seul, and Taeng Ja finally introduces Gong Chae to Ttu Gi as her father.

Gwang Nam and Byun Ho go to an ob-gyn clinic. After speaking to the doctor, they decide to try IVF treatment, but they are very careful to keep it a secret from Poong Nyeon. Meanwhile, Gong Chae introduces Taeng Ja to his brother, saying that she is his fiancee, and Ki Jin runs into a mysterious man who claims to be Gwang Tae's biological father.

Mr. Kim, the man who claims to be Gwang Tae's biological father, keeps contacting Ki Jin. The man agrees to a DNA test to prove that what he's saying is true. Meanwhile, Gwang Nam and Byun Ho keep lying and sneaking around as they go through IVF treatment. Also, Ye Seul works hard to get ready for his audition. However, he gets a phone call that Dol Se has collapsed.

After his audition, Ye Seul rushes over to the hospital where Dol Se is in surgery. Everyone is relieved that Dol Se's surgery went well, but soon, they start to worry about the hospital bills. Ye Seul decides to give up his dream of becoming a singer, but Gwang Sik tries to change his mind. Meanwhile, Ki Jin continues to meet with Mr. Kim who starts to ask him for money.

Mr. Kim shows up at Pung Jin's house, demanding more money from Ki Jin. Meanwhile, Ye Seul refuses to compete in the consolation match of the audition, even though everyone wants him to. Also, Gwang Nam gets her hopes up about being pregnant when Poong Nyeon finds the pair of baby shoes in her drawer.

Mr. Kim chases up Ki Jin day and night for money, and he even shows up in front of his house. Sa Chae finds him suspicious and looks into him closely. Meanwhile, Ye Seul gives up becoming a singer and wants to focus on his moving company but, Gwang Sik tries her best to convince him.

Byun Ho and Gwang Nam have lunch together at a restaurant and coincidentally sees a photo of Gwang Nam and Cheon Gil together. Meanwhile, Ki Jin warns Chi Bum to stay out of their life, but he threatens him even more. Therefore, Ki Jin tells Cheol Soo about Chi Bum and asks for his help.

The three sisters hear about Cheol Soo's budding romance and decide to meet Young Hee in order to see what she's like in person. Meanwhile, Taeng Ja gathers the entire family to officially introduce Gong Chae as her future husband. As Ye Seul's popularity grows, Gwang Sik becomes more upset about how distant he has become.

Gwang Nam wakes up feeling mortified about her drunken rant at her mother-in-law. However, despite what she thinks, Poong Nyeon's reaction leaves everyone surprised. Meanwhile, Gwang Tae witnesses Cheol Soo and Young Hee on a date. The three sisters decide to confront Cheol Soo about his relationship with her. Later on, Gwang Tae gets some shocking news.

After Bong Ja tells Gwang Nam and Gwang Sik the truth, they get shocked and feel terribly sorry for Cheol Soo. At the same time, Gwang Sik decides to meet her birth father. Meanwhile, Byun Ho, Ye Seul, and Ki Jin plan to throw a surprise birthday party for their one and only father-in-law, Cheol Soo, but he is nowhere to be found.

Gwang Nam, Gwang Sik, and Gwang Tae look for Cheol Soo but, they can't find him anywhere. Meanwhile, the misunderstanding between Ye Seul and Gwang Sik grows due to a lack of communication, and Gwang Sik decides to get a divorce from him in the end since he lied to her to see another woman. Ye Seul tries to apologize but, it is too late.

Ye Seul gets an earful from everyone about the incident with Byeol, and he asks Gwang Sik for forgiveness. Meanwhile, as Cheol Soo and Young Hee get ready to have a wedding, this time, Gwang Nam's biological father shows up. As the family continues to grow, they share their love and joy with more people as well.