Mi Sook has completely lost it and tries to kill herself and take Hwa Yeong with her. Jin A’s symptoms are getting worse, and Sun Tae and Jin Woo agree that they should put her in a facility before it’s too late, even if Hwa Yeong thinks otherwise. Meanwhile, Soo Yeon comes up with a concrete idea to make Hwa Yeong pay for all her wrongdoings.
Jin A’s obsession with Dong Ha eventually puts him in a critical condition, and Dong Ha hovers between life and death. As soon as she hears about the accident, Mi Sook regrets everything that she made Dong Ha go through. Meanwhile, Hwa Yeong’s trickery drives Yu Ra to lurk around outside Mi Sook’s store.
Dong Ha’s next step after successfully taking over SA Group is to start his life all over again from the start. In doing so, he asks Dae Chul to find someone suitable for his position. Meanwhile, Soo Yeon makes a visit to the hospital after hearing the news about Yu Ra’s condition, not knowing what unexpected twist lies ahead.
Soo Yeon eventually finds out about the whereabouts of Hwa Yeong’s second set of books, but it seems nearly impossible to secure it without letting Hwa Yeong know. However, Ms. Lee suggests that she might have an idea. Dae Chul and Soo Yeon arrive at Hwa Yeong’s storage room, and they run into someone unexpected.
Jin A’s obsession with Dong Ha almost results in his death, but Mi Sook is still not sure if she should let Dong Ha get divorced. Meanwhile, even after the incident, Jin A’s obsession with Dong Ha continues, and this time, she threatens Mi Sook that she would tell Hwa Yeong everything about her little deal with Mi Sook if she were to demand a divorce.
Realizing what Hwa Yeong has done to his medication all this time, Sun Tae leaves her. Meanwhile, Soo Yeon panics when she finds out about Seo Jun’s disappearance. It was later revealed that it was all Jin A’s doing, and it eventually led Dong Ha to make up his mind to go through a divorce. When Jin A hears about Dong Ha’s decision, she plans something wicked.
Not being able to grasp the situation regarding Yu Ra, Hwa Yeong flounders. However, now that she knows that Yu Ra is alive and that Soo Yeon may well be aware of Yu Ra’s condition, she believes that she now has the upper hand. Meanwhile, Dong Ha carefully continues on with his plans to take over SA Group and waits for the right timing.
Hwa Yeong’s atrocious acts have been exposed through Soo Yeon’s personal live broadcast, and this time, it seems unlikely that Hwa Yeong will get away with it. Meanwhile, Dong Ha is sickened by Jin A’s possessiveness over him when he finds out about her despicable behavior. However, the fact that she got caught only worsened her symptoms.
Jin A blames Soo Yeon for Dong Ha’s cold attitude toward her and decides to make Soo Yeon quit. When Soo Yeon rejects her request, she comes up with a hilarious idea to deepen her relationship with Dong Ha. Meanwhile, Jin Woo offers a way to cut Jin A out of Soo Yeon’s life, and Soo Yeon accepts it for everyone’s good.
Soo Yeon is in shock after witnessing Yu Ra’s car accident right when it happened. Yu Ra is immediately sent to the hospital, but her condition doesn’t look too good. Meanwhile, Hwa Yeong acts as if she has lost everything after hearing the news regarding the accident, but she’s more curious to know the whereabouts of Yu Ra’s necklace.
Hwa Yeong and Soo Yeon find out that Yu Ra is actually Park Sang Do’s daughter, with her real name being Park Eun Ji. Hwa Yeong then accidentally says something she shouldn’t have without knowing Yu Ra is eavesdropping. Meanwhile, Jin A figures out why the key ring on Dong Ha’s briefcase means so much to him.
Soo Yeon thinks that locking Yu Ra up in a holding cell will finally reveal all her wrongdoings, but she isn’t so sure anymore when she hears a ridiculous thing about her dad. Meanwhile, Hwa Yeong can’t believe that she allowed Yu Ra to take advantage of her all this time and feels frustrated that she can’t kick her out of the house.
Jin A can’t seem to control her obsession with Dong Ha, and it eventually forces her to make unforgivable mistakes. Meanwhile, Yu Ra finds herself cornered and feels threatened after receiving a package from an unknown sender. Assuming that it was Soo Yeon who sent the unpleasant surprise, Yu Ra does what she does best to sound Soo Yeon out.
Young Ji decides to tell Hye Kyung and Soo Yeon about her pregnancy and her plans to raise the kid alone. At the office, Soo Yeon stumbles upon a suspicious conversation between Yu Ra and a stranger, and she thinks it’s worth finding out who the stranger is. Meanwhile, a picture sent by an unknown sender upsets Jin A, and she’s already on her way to SA Group.
Jin A shows everyone at the wedding ceremony that she can walk. Dong Ha is utterly shocked and doubts it was a miracle. Later, he finds out that Mi Sook knew all along and leaves the house furiously. Meanwhile, Hwa Yeong gets a warning letter regarding the company's default on a contract and calls Yu Ra to her office.
Soo Yeon eventually accepts that she has ended things with Dong Ha and lets Hye Kyung know that she broke up with him. Meanwhile, Dong Ha feels obligated to marry Jin A, but things get more difficult for him when Soo Yeon finds out about his wedding. At the same time, Sun Tae questions Dong Ha if his love for Jin A is genuine.
Hwa Yeong is done holding back her anger and blames Hye Kyung for her soon-to-be realized divorce life. She even slaps Hye Kyung in the face. Later, Hye Kyung finds out how Sun Tae is related to her family. Meanwhile, Soo Yeon gets a request for her custom wedding shoes, but she has no idea who has made the request.
Hwa Yeong tries to get Jin A to forget Dong Ha by setting her up on a date, but Jin A only wants to be with Dong Ha. Meanwhile, Mi Sook has Soo Yeon and Dong Ha come over for dinner, but she also invites someone else that shocks them. Later, Yu Ra uses Jin A to get in the way of Soo Yeon and Dong Ha by telling her of a possible marriage proposal.
Soo Yeon looks into the case of a steep increase in the sales of the design team, and she stumbles upon an irregularity in the sales report. Meanwhile, Mi Sook continues to struggle to end the relationship between Soo Yeon and Dong Ha, but dealing with her son and his issues seems to be more difficult than anything that she has ever done.
Soo Yeon is certain that it was either Hwa Yeong or Yu Ra who was responsible for her father’s death. She realizes that she could devise a little scheme with the flash drive to find out which one of the two is lying. Meanwhile, Yu Ra gladly agrees to sign the divorce papers, but Hwa Yeong suspects that Yu Ra must be up to no good.
Soo Yeon finds out that Sun Tae was the artist who gave Hye Kyung the painting and the man her mom has been seeing. Although Soo Yeon tells Sun Tae to leave her mother alone, she doesn't let Hye Kyung know who he is. Meanwhile, Jin A doesn't stop asking Mi Sook for Dong Ha, which Mi Sook thinks could come in handy.
The fact that Dong Ha and Soo Yeon are in a relationship annoys Mi Sook. On top of that, she is certain that she will never accept Soo Yeon as her daughter-in-law and demands that Soo Yeon stay focused on revenge. Meanwhile, Sun Tae is watching Hye Kyung’s store while she’s gone for a while and runs into someone unexpected, which surprises both parties.
As Soo Yeon rushes out of the office after getting a phone call from a stranger, Dae Chul lets Dong Ha know that she received a tip-off. Dong Ha notices something is fishy about it and goes right after her. Meanwhile, Hwa Yeong no longer needs Yu Ra and wants her to split up with Jin Woo. However, Yu Ra does not give up easily and threatens her back.
Hwa Yeong and Yu Ra get furious at Jin Woo for embarrassing them in front of the reporter and ruining the interview. However, Jin Woo moves out of the house to get back together with Soo Yeon after throwing a fit at Hwa Yeong. Soo Yeon has no choice but to let him stay with her. Meanwhile, Soo Yeon receives an unexpected phone call about her late father.
Hwa Yeong has no choice but to keep Yu Ra by her side after finding out about the voice recording that Yu Ra has on her. Meanwhile, Soo Yeon gets a clear sense that Hwa Yeong knows something about her dad’s death. Not being able to get Hwa Yeong to talk, Soo Yeon instead demands that Jin Woo show some sincerity if he wants to get back with her.
The police show up in front of Soo Yeon and arrest her for kidnapping her own son. As she is not able to think straight, Dong Ha helps her find out what is going on. Meanwhile, Jin A finally finds out that Mi Sook is Dong Ha's mother. She wants to let her mother know about this, but Mi Sook made sure to keep this a secret.
Hwa Yeong does not expect to run into Sun Tae at the exhibition, especially with a woman by his side. As soon as she gets out of the gallery, she makes sure Sun Tae is followed wherever he goes. Meanwhile, Soo Yeon and Yu Ra are competing for SA Group’s new brand, and Hwa Yeong is confused about the unforeseen result.
Soo Yeon learns the truth behind the fabrication of her dad’s autopsy result after convincing the doctor to share all the details about the autopsy. Soo Yeon barges into Hwa Yeong’s house and loses her temper. Meanwhile, Soo Yeon comes across one of Mi Sook’s shoes with a familiar brand on it and tells Mi Sook how it is related to her.
Although Soo Yeon does feel safe and protected around Dong Ha, she doesn’t respond to Dong Ha’s love confession right away. Meanwhile, Dong Ha learns about the whereabouts of the person whom Soo Yeon has been looking for and delivers the message to Soo Yeon. Soo Yeon immediately starts looking for him.
Jin Woo is furious at Hwa Yeong for wrongfully accusing Soo Yeon of having an affair and wants to undo his divorce. Meanwhile, Soo Yeon looks for an opportunity to acquire more shares of SA Group, and that’s when she learns about Director Ma. Soo Yeon takes a risk of getting something on him, but Dong Ha finds it too dangerous for her.
Hwa Yeong's house gets turned upside down. With Yu Ra's fake parents on their knees, Yu Ra tells Hwa Yeong she's pregnant with Jin Woo's child, and Jin Woo tells Hwa Yeong he wants to divorce Yu Ra. Meanwhile, Mi Sook, who knows what happened at Hwa Yeong's, asks Soo Yeon if she will get back together with Jin Woo.
Hwa Yeong lets herself into Jin Woo’s office and finds out that Soo Yeon is after her son’s custody. Soo Yeon’s plan to get Seo Jun back fails, and she takes a step back for the moment. Meanwhile, Mi Sook invites people over in return for the recent dinner invitation. However, things go south for Jin Woo when Yu Ra sees him and Soo Yeon standing a bit too close to each other.
Dong Ha hears about Mi Sook and Soo Yeon’s trip to Hwa Yeong’s house and is extremely worried. Meanwhile, Soo Yeon waits for an opportunity to find what she came for, but something goes horribly wrong. Yu Ra gets a threatening phone call from a restricted caller, but she has no intentions of backing down.
Yu Ra eventually finds out how Young Ji is related to Soo Yeon. Knowing that she can not afford to pay penalties for breach of the confidential agreement, Young Ji keeps the fact that she got caught by Yu Ra a secret from Soo Yeon. Meanwhile, Dong Ha is worried that Soo Yeon might misinterpret his relationship with Jin A.
A stranger takes Soo Yeon hostage with a knife to her throat. Fortunately, Dong Ha is able to safely rescue her without seriously getting injured. However, Soo Yeon later gets accused of hiring a man to stage a hostage situation. Meanwhile, Yu Ra receives a message from an unknown sender, and she is not happy about it.
Seeing Soo Yeon leaning her head over Dong Ha’s shoulders was too shocking for Jin Woo to the point where he confused Yu Ra with Soo Yeon. Meanwhile, Soo Yeon learns that Seo Jun is sick, but there is nothing she can do for him. Sensing that something is seriously wrong, she decides to just visit Seo Jun even though she’s not allowed to.
Soo Yeon’s carefully planned strategy publicly exposes Jin A’s true character, and the entire group faces a crisis because of it. Meanwhile, Hwa Yeong focuses on finding the person who is behind the recent happenings. At the same time, Soo Yeon swears that she will never let anyone mistreat her moving forward.
Soo Yeon is able to get her hands on a piece of evidence that proves her innocence. However, Yu Ra doesn’t admit that she has copied Soo Yeon’s work even after seeing the photo. Soo Yeon gets reinstated as a senior manager on another team, and she now has to compete with Yu Ra to prove who’s better. Meanwhile, Soo Yeon looks deeper into finding the truth behind her dad’s accident.
Soo Yeon is absolutely certain that Yu Ra has somehow managed to get her hands on Soo Yeon’s design. However, Soo Yeon is having trouble proving her innocence and is also on the edge of getting fired from the company. Now that she has lost everything, Soo Yeon must prove that the design was actually hers at all costs.