After Ji-han gave his permission last week but Ah-jung can’t stop being bothered by it. Ji han seems to have made peace with himself. He meets with Chae Won and lets her know he’s going to be considerate of his feelings from now on. Chae won feels he’s been vague and not giving her a direct answer to her proposal
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As for Ah-jung, she’s unable to stop dwelling on Ji han. Now that the wedding news has been publicly released, reporters have started to look for Ah jeong. The press starts hounding Ah Jeong to the point that she decides to go stay with Do-han so now she’ll be forced to also live with Ji han who shares the same house with his brother.
Meanwhile, Team leader is about to confess his feelings to Ah jung’s friend Ji ae after she urges him to be honest with her. But when he senses she’s going to reject him, he instead says that he likes her coffee leaving Ji ae in anger at being snubbed by him.
Grandfather finds out about Ah jung’s home address being leaked to reporters. He blames Min Woong and his wife for it and tells them they should never dream of inheriting the company. Min woong and his wife confront Seunga knowing she set them up. Seunga admits to it defending her actions as her taking revenge for Min woong pinning the drunk driving incident on her. It’s obvious she’s ready to sabotage them to get what she wants and the couple are furious about this.
That night, Ji han unaware of Ah Jung’s presence in the house takes a long bubble bath. Afterwards, he saunters into the living room, bare chested, toweling his hair. Ah-jung, runs into him and she stares mesmerized yet startled by his nakedness which causes her to drops her banchan and they both stare at each other
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She quickly turns away, but her eyes sneak back in his direction (and he unsuccessfully tries to cover his torso with his tiny towel. Cut to the next scene, where Ji-han, Ah-jung, and Do-han sit in the living room trying to quell the discomfort, and Ji-han’s got his hoodie zipped to the neck covering himself head to toe. Ah-jung tells a story about how her eyesight is bad and she’s not wearing her glasses, which might work if Do-han didn’t ask: “Didn’t you get LASIK last year?” Her look says she might actually kill him.
To create distance, Ji-han keeps calling Ah-jung “sister-in-law,” which annoys her to no end, but makes Do-han happy. The brothers share a smile with each other and seem to be getting along better than ever before. But that night, Ji han leaves the house to clear his head unable to stand seeing them together.
However, the next morning while arranging Ah Jung’s room, her sister and husband come across the marriage contract document between Do han and Ah Jung. Her sister is stunned for words.
Ah-jung and Ji-han are alone at home and he keeps calling her sister in law, making Ah Jung annoyed and creating tension between them. Finally, she asks for the truth about why he gave permission when he didn’t mean it. Ji han tries to wrangle his way out with a vague response and starts to walk away despite Ah Jeong holding on to him. Still, they don’t resolve anything, and go their separate ways feeling sad.
The next confrontation is between Do-han and his ex, Jung Dae Hyun. Dae-hyun has been creeping around causing problems at Do-han’s studio, and even made himself known to Ah-jung, which sets Do-han off. Dae-hyun thinks that Do-han should feel guilty about what happened between them, and vows to make himself happy by hurting Do-han. Do han eventually leaves in anger.
Unknown to them, reporter Kang ik jun takes pictures of their meeting which he shows to Seunga. At first she thinks knowing about the other man is irrelevant but Kang ik jun tells her there seems to be something there. Kang Ik jun says she owes him but Seunga sternly reminds him that although, she’s interacting with him, she doesn’t like him because she would never forget that he was the one who caused the accident that killed her mother.
That night, Chae won and Ji han take a walk. He reveals he would be very uneasy when Ji han and Ah Jung marry and start living together. Chae Won advices him to get his own place. Meanwhile, Ah jung visits her friends cafe in disguise lamenting about how difficult it is to be famous. Ah Jung reveals that Ji han has accepted her now except that whenever he calls her sister in law, she feels a certain pain in her chest. Her friends are baffled by this and advice her not to worry and to only focus on her wedding.
Ah Jung returns home only to be attacked by her sister who is angry with her over the fake marriage. Ah Jung explains that she took the deal since her life and career was going nowhere. However, she isn’t sure anymore. Still, she would go through with it. Her sister scolds her for not thinking things through but Ah Jung reminds her she didn’t think things through when she got pregnant out of wedlock. At that, her sister has nothing to say. As they leave the house, Ah Jung’s brother-in law gives her his support. However, her sister reluctantly decides to keep the secret.
Do han has a drink with Ah Jung’s father in other for them to bond. Her father ends up drunk and Do han has to piggy back him to his house. On getting there, everyone is warm to him except Ah Jeong’s sister who is quite hostile.
Back at his home, Do han tells Ah Jung he is happy and that he would be a good husband to her. Ji han arrives and watches them from a distance, heartbroken. Do han enters inside the house while Ah Jung remains outside deep in thought and feeling overwhelmed by her people’s expectation of her. Ji han suddenly joins her and in a heartbreaking conversation, Ah-jung does her best to confess, telling Ji-han that in this whole wedding equation, he’s the variable she can’t overlook. It’s obvious that she’s trying to give him the chance to stop her from marrying his brother, but Ji-han tells her to trust her decision to marry Do-han and he’ll trust his own decision to let her go.
In the next scene, Ah Jung is trying wedding dresses in front of Do han but she’s clearly unhappy. However as she tries on one more dress, Ji han suddenly barges into the dressing room. Do han is nowhere to be seen and Ji han literally pulls her out of there and into the street. His motive is clear. He’s here to stop her upcoming wedding.