Dan Dan grows up being told that her birth mom is dead but still becomes a hard-working young woman. One morning, she overhears her stepmom and stepbrother talking about something that sounds like tro…

Dan Dan takes Young Guk for a handsome psychopathic criminal, like in the movies, and she hits him in the head with her water bottle. Young Guk ends up with a gash on his forehead and is baffled by Da…

Dan Dan gets hired to work as the live-in tutor at Young Guk's house, thanks to the help of Sa Ra. However, she gets into trouble on her first night on the job. Meanwhile, Sa Ra gets invited to a fanc…

Dan Dan and Soo Cheol realize that they work in the same household and worry that their employer might think they are up to something suspicious. Yeon Sil tries to persuade Dan Dan to leave her positi…

Young Guk's strict nature with his kids makes his relationship with Se Jong worse than ever. Young Guk enlists Dan Dan's help to resolve the matter. Although they bicker about how to handle the kids, …

Young Guk and Jae Ni fight when he mistakes Jae Ni's new friend, who happens to be a boy, as her boyfriend. Dan Dan helps the father and daughter make up, and Young Guk feels grateful. Meanwhile, Yeon…

Young Guk's family treats Soo Chul as if he were a parasite and a fraud, and they kick him out. As Dan Dan watches her dad endure such humiliation, she decides she must leave her job as well. The chil…

Soo Chul finds out that Dan Dan got an advance on her salary and gave it to Yeon Sil. He becomes upset and goes to see Dan Dan to return the money. However, he is only met with more disappointment whe…

Dan Dan is upset that she has to lie about going to see her dad in the hospital and ends up blurting out the truth to Young Guk. When Young Guk hears of her relationship to Soo Chul, he becomes angry …

When Dan Dan returns to help console Se Jong and continue working at Young Guk's house, Sa Ra feels threatened by her. Se Ryeon gets drunk and barges into Dae Bum's house, asking him to take her back.…

Young Guk finds Dan Dan in the woods with a sprained ankle. Sa Ra becomes angry and jealous when she witnesses Young Guk carrying Dan Dan on his back. Meanwhile, Dal Rae sees a photo of Mi Sook and he…

Dan Dan and Young Guk realize that they have a past connection. When Sa Ra sees how close Dan Dan and Young Guk are getting, she is overcome with jealousy. Meanwhile, Se Ryeon meets the man Dae Ran wa…

Dan Dan confesses her feelings for Young Guk in a drunken state which sends her into a frenzy the next morning. It makes her even more nervous to face Young Guk, and Young Guk also starts to notice Da…

Dan Dan gives Young Guk time to make up his mind about her until the next day at midnight. Young Guk contemplates long and hard about what to do. Meanwhile, Dae Bum realizes that Se Ryeon is about to …

Sa Ra confesses her feelings for Young Guk, making him decide that they cannot work in the same house anymore. As Sa Ra resigns and leaves Young Guk's house, Dan Dan and Young Guk's secret relationshi…

Young Guk confesses to Dan Dan that he couldn't tell Anna about their relationship, and the two agree to take things slowly. However, Young Guk continues to worry that Dan Dan might get hurt by other …

Dan Dan returns home alone after waiting to meet Young Guk. She is shocked to hear that he is still not back from his hiking trip. Young Guk's family and friends call the police and desperately search…

Sa Ra and Dae Ran decide to lie to Young Guk and tell him that he and Sa Ra were engaged to be married. As Young Guk feels confused, Dan Dan thinks he was two-timing her. She decides to quit her job a…

The conflict between Sa Ra and Dan Dan escalates as Young Guk’s sons get involved. While Sa Ra clearly favors Se Jong, Dan Dan tries to treat both Se Jong and Se Chan equally. Meanwhile, Soo Chul gets…

Young Guk thinks that he hurt Sa Ra by cheating on her with a younger woman, so he wants to make it up to her. He plans a big proposal at the vacation home and takes her there. Meanwhile, Dan Dan beco…

Young Guk becomes confused after having kissed Dan Dan on the lips, and Dan Dan, who finds it inconceivable that their lips touched, becomes bothered by it. Meanwhile, Dae Ran gets annoyed with Ki Ja …

Jealousy overcomes Young Guk after seeing Dan Dan and Hyun Bin affectionately together. Using coincidence as an excuse, he tries to spend as much time with her as he can. Sa Ra attempts to get close t…

Young Guk feels guilty about liking another woman when he is just about to get engaged. He tries to make himself like Sa Ra but finds it tough to get Dan Dan off his mind. Meanwhile, Sa Ra is appalled…

As the day of her engagement draws near, Sa Ra feels anxious about Gun's presence in Young Guk's house. She decides she must do something about it and asks to see him. Meanwhile, Young Guk can't hide …

Young Guk's kids receive a great shock when they find out about Young Guk and Sa Ra's engagement. Se Chan even leaves a note saying he refuses to accept Sa Ra as his new mom and disappears. Meanwhile,…

Young Guk continues to get bits and pieces of his memory back. He wonders why those memories include Dan Dan and asks her about it, but Dan Dan refuses to admit that there was ever anything between th…

Young Guk regains his memories, throwing Sa Ra and Dae Ran into a frenzy. Dae Ran begs Sa Ra not to tell Young Guk about her involvement in their scheme, but Sa Ra declares she will not give up on mar…

Soo Chul stays with Anna on the day of her surgery and comforts her. When she begins to show her affection for him, Soo Chul feels conflicted. Meanwhile, Sa Ra releases an article about her engagement…

Anna goes to Yeon Sil and asks her to persuade Soo Chul to come and work in the US with her. After hearing the salary Soo Chul would get if he took the offer, Yeon Sil pushes Soo Chul to accept. Meanw…

Yeon Sil and Anna finally convince Soo Chul to go work in the US, but now Dan Dan refuses to go. As Young Guk tries to make Dan Dan leave with Anna, Se Chan and Se Jong come up with a plan to make You…

After the fire at the vacation house, Dan Dan returns to Soo Chul's place on sick leave given to her out of consideration by Young Guk. However, Young Guk ends up heading there to pick up the kids, wh…

As Dan Dan keeps trying to make Young Guk admit his feelings for her once again, Young Guk continues to ignore her efforts. Meanwhile, Soo Chul's suspicions for Anna grow to the point that he decides …

Dan Dan finds out that her birth mother is alive. She asks Soo Chul to tell her about her birth mom, but he refuses to do so. Dan Dan decides to ask Anna for help since her birth mom is said to have g…

Young Guk insists that he and Dan Dan maintain a professional relationship only. However, his feelings for Dan Dan keep showing inadvertently, and Dan Dan wants him to admit he still has feelings for …

Dan Dan and Young Guk finally admit their feelings for one another and start dating, although they have to keep their relationship a secret for now. As the prospects of Se Ryeon and Seung Ho's marriag…

Se Ryeon hears about the rumor that Seung Ho has a child and asks Dae Ran if it's true. Then, Mi Sook tells Se Ryeon the truth about Seung Ho and that Dae Ran asked to have her set up with him. The tr…

Young Guk finally asks Dan Dan to officially be his girlfriend. Although they are overwhelmed with joy, they’re still nervous about how to tell the news to the people around them. Meanwhile, Ms. Wang …

Young Guk tells the news to Anna. Unlike his thoughts, Anna does not understand their relationship. She strongly claims that the two dating is not right. Moreover, Dan Dan’s father finds out about thi…

Anna witnesses Young Guk and Dan Dan sharing a tender moment outside of his office. She tells Young Guk off, saying he should consider what people might say. Young Guk feels confused and hurt by Anna'…

Dan Dan and Young Guk decide to tell the kids about Dan Dan's departure. The kids are sad to hear the news, but they try their best to be mature about it. They say goodbye with a farewell trip and a p…

Dan Dan goes to see Se Jong who is suffering from separation anxiety. He gets better as soon as she reassures him and everyone is relieved. However, Soo Chul becomes furious at Young Guk for calling D…

Dan Dan realizes that Anna is her birth mom and that Soo Chul tried to send her to the US while knowing this fact. Feeling shocked and hurt, Dan Dan storms out of the house. Meanwhile, Sa Ra is taken …

Young Guk recalls a fragment of a memory from when he thought he was 22 years old and becomes anxious that he might have mistreated Sa Ra. Dae Bum and Se Ryeon run into each other and rekindle their l…

Sa Ra barges into Young Guk's house and announces that she is pregnant with Young Guk's child. Young Guk feels confused about it all but ends up letting her move back in when she shows up with all of …

Dan Dan thinks Sa Ra might be lying about her baby being Young Guk's child. She goes to talk to Young Guk, but he refuses to listen. Still, Young Guk spends night after night drinking, and Se Jong's s…

Young Guk gets a flashback of being with Sa Ra as his 22-year-old self. He confronts her about her lies and demands that she move out. However, Sa Ra refuses to budge. Meanwhile, Dan Dan has a hard ti…

Young Guk finally regains all of his memories but doesn't want Dan Dan to get mixed up in his complicated life anymore. Soo Chul wants to send Dan Dan abroad before she finds out about Young Guk's mem…

Sang Gu continues to threaten Sa Ra for money, and when that doesn't work, he decides to use Se Jong as bait. Se Jong nearly gets into an accident while running away, and Dan Dan gets injured while sa…

Se Chan and Se Jong get excited to see Dan Dan back at their house for a job interview, but Young Guk turns her away. Soo Chul tells Anna that she must get surgery and go on living for Dan Dan's sake …

Young Guk finally realizes that he was wrong to break Dan Dan's heart and tries to win her back. As Mi Sook continues seething over Jun O and Mi Rim's relationship, Jun O declares that he won't see Mi…

Yeon Sil is hurt by Soo Chul and Dan Dan's attitude toward Anna, now that she is sick. However, she soon has a change of heart and allows them to help Anna throughout her recovery. Young Guk also help…

Feeling her last moments drawing near, Anna asks Young Guk to take care of Dan Dan. Yeon Sil also promises Anna that she will stay by Dan Dan's side. Meanwhile, Soo Chul finally gives Dan Dan his bles…