Eps. 1
Nah-ra’s live-in boyfriend, Seung-woo finally asks her to marry him.
However, he confesses to her that he has cheated on her. Shocked and confused, Nah-ra goes to the soccer game alone that she and Seung-woo planned to go to together.
While drinking alone at a bar, she leaves her ring in the glass and walks away. In-jae is at the same bar. After Nah-ra left, he drinks out of Nah-ra’s glass by mistake. Without realizing it, he swallows Nah-ra’s ring. Soon, Nah-ra regrets having thrown away the ring. She goes back to the bar and finds out that In-jae swallowed her ring. She gets upset and asks for the ring back. In-jae tells her that he’ll give her the ring back if she works as a cheerleader for his soccer team. She reluctantly agrees.
Eps. 2
Nah-ra’s sister, Nah-kyung finds out that Seung-woo has cheated on Nah-ra with Mi-rae. She insists that Nah-ra give Mi-rae a piece of her mind, but Nah-ra doesn’t want to look like a desperate and jealous girlfriend.
While looking for someone to take care of Bong-chang, In-jae calls Nah-ra and makes her look after Bong-chang. In-jae goes to his mother Jin-hwa and asks her to loan him money to pay for Bong-chang’s hospital bill. His mother gives him the money on the condition that he works in her company. In-jae asks Nah-ra to take care of Bong-chang for one more week. Nah-ra tells him that she can’t afford to be nice to anyone because she just found out that her boyfriend has cheated on her. However, In-jae persistently tries to change her mind.
Nah-kyung decides to go to the store where Mi-rae is working. She wants to embarrass Mi-rae by telling everyone that Mi-rae had an affair with her sister’s boyfriend. Nah-ra rushes to the store and stops Nah-kyung just in time. Mistaking Nah-ra for a job applicant, Mi-rae tells her to apply for a beauty consultant at her company.
Eps. 3
Nah-ra lies to In-jae and sells her place to him. One night, she forgets the fact that she has moved out and heads to her old place out of habit. Right before running into In-jae, she realizes that she doesn’t live there any longer. The next day, Nah-ra goes to the beauty consultant training. There she runs into In-jae who reluctantly agreed to work for his mother’s company. Mi-rae introduces Nah-ra to In-jae. She lies him that Nah-ra is Seung-woo’s cousin. Nah-ra, In-jae and Mi-rae have a party celebrating their first day of work. Nah-ra encourages Mi-rae to drink excessively in order to embarrass her. However, Nah-ra gets drunk before Mi-rae. In-jae takes Nah-ra home and he finds out that the person he believed to be Nah-kyeong is in fact Nah-ra. Without knowing that Nah-ra moved out, Seung-woo looks for Nah-ra at her old house. He’s surprised to see In-jae.
Eps. 4
Nah-ra finds out Mi-rae’s e-mail password and reads her e-mails. She also learns that Mi-rae and Seung-woo go on a trip to Daegwanryeong together. Nah-ra decides to follow them and interrupt their trip. When In-jae finds out what Nah-ra is up to, he follows Nah-ra to Daegwanryeong to stop her.
Nah-ra happens to hear In-jae and Mi-rae’s conversation. She finds out that Mi-rae was once engaged to In-jae’s older brother In-chang. Mi-rae decides to tell Seung-woo about her past.
Eps. 5
In order to save Nah-ra from a man who has been stalking her, In-Jae pretends to be Nah-ra’s boyfriend. In-jae kisses Nah-ra in front of the stalker. However, Mi-rae and Seung-woo happen to see them. Each of them has mixed feelings for different reasons; Mi-rae feels jealous because she secretly loves In-jae, and Seung-woo feels funny about seeing his ex-girlfriend with another man.
On her 30th birthday, Nah-ra feels lonely. She goes to meet In-jae, but he can’t make it because of his mother. However, his mother realizes that she has an important appointment and leaves In-jae alone. From the employees’ contact information, In-jae finds out that it is Nah-ra’s birthday. He invites Nah-ra to his house. Nah-ra slips in the bathroom and gets soaked. She borrows In-chang’s (In-chang is In-jae’s dead brother) clothes. In-jae’s mother asks Mi-rae to keep In-jae company. Mi-rae heads to his house.
Eps. 6
In-jae throws Nah-ra a birthday party by the river. She feels happy and comes home. Meanwhile, Nah-ra’s mother and sister realize that they forgot Nah-ra’s birthday. They expect Nah-ra to be angry and grumpy, but she seems very happy. Nah-ra can’t help but smile whenever she thinks of In-jae.
Nah-ra is worried if Mi-rae misunderstands her relationship with In-jae. She tries to explain to Mi-rae, but Mi-rae doesn’t want to listen. In-jae tries to keep a distance from Mi-rae. Seung-woo isn’t comfortable about the fact that Mi-rae is working with In-jae. He asks her to quit her job.
Eps. 7
At Jin-hwa’s house, In-jae sees Mi-rae dancing with Seung-woo. He takes her by the sleeve and pulls her outside. Mi-rae tells In-jae that she’s tired of misunderstanding his feelings about her. She also tells him that she’ll marry Seung-woo and try to love him. Nah-ra overhears their conversation. When she turns around, she sees Seung-woo who looks shocked by Mi-rae’s confession. Mi-rae decides to tell Seung-woo the truth. She tells him that she’s been in love with In-jae as long as she can remember.
Eps. 8
Nah-ra goes to Mi-rae’s apartment. Saying that she loves In-jae, Nah-ra asks Mi-rae to leave In-jae alone. However, Mi-rae says that In-jae and she love each other. Mi-rae tells Nah-ra to leave.
In-jae and Na-ra become partners for the make-up contest at work. Nah-ra tells In-jae that she loves him. She asks him to choose her over Mi-rae.
Eps.9
Mi-rae thinks that something is weird about Nah-rah, so she goes to Seung-woo and asks him about her. He tells her the truth about Na-rah and that In-jae knew about her long time ago. As everyone at work starts to find out the truth about her and how she lied about her age to come into the company, she turns in a letter of resignation. But Mi-rae tells her to end what she started and does not take it.
Eps.10
Jin-hwa asks Nah-rah to work at the gallery again as the manager. In-jae does not know that Jin-hwa has met Nah-rah so In-jae visits Jin-hwa and asks her if there is any place that Nah-rah can work at in the company. In-jae meets Seung-woo, who has been appointed as a director of Face Story, and Seung-woo asks In-jae if he knows why Jin-hwa called Seung-woo and Nah-rah to the company at the same time. In-jae meets with Nara at the snack bar and asks her not to re-join the company.
Eps.11
In-Jae wakes up with a headache; he is surprised when he sees Mi-rae sleeping next to him at her place. Mi-rae prepares breakfast for In-jae; the two have breakfast together but he feels awkward because of what happened the night before.
Seung-woo goes to the gallery to visit Mi-rae. Choon-ae acts as if they are very close and gives Seung-woo some pictures that Mi-rae and him took at the wedding shop in front of Injae. Choon-ae’s behaviors irritate Mi-rae and she studies In-jae's facial expressions. Mi-rae asks Seung-woo not to visit the gallery anymore, but Seung-woo starts talking about San Francisco and tells tells her not to disregard him.
Eps. 12.
Mi-rae is restless due to feeling uneasy that Seung-woo may have found her baby's diary, and Seung-woo thinks that Mi-rae has In-jae's baby. Jin-hwa comes back from her business trip, and goes straight to Mi-rae's place.
Jin-hwa tells Mi-rae to break up with In-jae but Mi-rae strongly says that she does not want to.
Meanwhile, Nah-rah is thrown out of the house by her father because she stayed out overnight. In-jae finds out that Nah-rah has been thrown out of the house due to his mistake, and he gives her the keys to Nah-rah’s rooftop room.
Eps.13
Jin-hwa proposes to have a small party at the gallery in order to boost everyone’s morale.
Jin-hwa finds out that Soon-young is Nah-rah's mother and tells Mi-rae to bring Soon-young to the party.
All employees gather at the gallery and Jin-hwa assigns Nah-rah as the project team manager of Deoderant; a new item which will be introduced soon.
Jin-hwa also announces that In-jae is her son and tells In-jae to work with Nah-rah.
After the party, Jin-hwa tells Mi-rae that the four of them are going to dinner together and asks her to clean up and finish her work for the day. Mi-rae knows that Jin-hwa is giving her a silent warning to stay away from In-jae.
Mi-rae feels alienated as she watches them leave for dinner. Seung-woo comes in just at the right time and looks at Mi-rae, who has a sad expression on her face.
Eps.14
In-jae is embarrassed that Mi-rae tells him that she has his baby. He goes out and drinks then he calls Na-rah and says “Good-bye" in a very meaningful way.
Jin-hwa blames Mi-rae that the actual results of the marketing are terrible and attacks Mi-rae's pride by saying that from now all marketing will be outsourced, starting with the Deodorant project.
Seung-woo feels sorry about the fact that Jin-hwa keeps attacking Mi-rae, but Mi-rae tells Seung-woo that the only way to win Jin-hwa is to love In-jae even more.
Eps.15
Nah-rah says that she cannot give up In-jae, and Mi-rae tells Na-rah that she has In-jae's baby.
Mi-rae asks In-jae for a small present so that she can feel confident of his love, so In-jae decides to have a little engagement ceremony.
Jin-hwa assigns Mi-rae to the regional office in Tokyo, but Mi-rae says that she cannot go.
Seung-woo meets Nah-rah and tells her that Mi-rae is pregnant but In-jae is not the father.
