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Ga-Eun is shocked to learn that her husband and best friend are having an affair. Journey back in time to see how Ga-Eun falls in love with Park Jung Woo.

As her visit begins, Mi-Ran has dinner at Ga-Eun’s. Afterwards, they try settling in for the night, but Ga-Eun gets a call from Jung-woo. He takes her on an impromptu date. Ga-Eun invites Mi-Ran to join them, and she arrives just as Jung-woo asks Ga-Eun a very important question.

It surprises Ga-Eun that Mi-Ran did not show up, but Jung-woo suggests it was for the best since a proposal is an experience a woman should enjoy without onlookers. Mi-Ran did show up, but she left hastily, after witnessing her fiancé's proposal to her best friend.

Mi-Ran fakes enthusiasm when Ga-Eun invites her to dinner to meet Jung-woo at six o’clock. Mi-Ran quickly places a call to Jung-woo demanding he meet her at six o’clock. He does not realize the reason she needs to meet prior to dinner with Ga-Eun, so he refuses.

Mi-Ran’s mother informs her that Mister Cho saw her kiss Ga-Eun’s fiancé. Intent on keeping her daughter from becoming her mother, Mal-ja threatens to tell Ga-Eun everything. She then takes Mi-Ran on a guilt trip insisting a caring friend like Ga-Eun deserves more respect from her.

Mi-Ran and Jung-woo are at the Ruby Hotel Coffee Shop discussing problems when Ga-Eun calls and tells Jung-woo to meet her there. He says he is stuck at work, but Ga-Eun swears she sees him darting out of the coffee shop. Her mother suggests Ga-Eun’s eyes have fooled her.

Ga-Eun’s sister arrives home after a girl fight and a trip to the ER. Mi-Ran envisions an all-out confrontation with Ga-Eun, but winds up getting drunk and simply knocking the flowers Jung-woo bought for Ga-Eun off a dressing table. Jung-woo considers doing a background check on Mi-Ran.

Yung-eun discovers her boss, Director Ha, possesses a laptop containing photos of Jung-woo with another woman. She tries telling Ga-Eun, but finds she cannot while her sister packs for her honeymoon. When Yung-eun finds out Mi-Ran is the woman in the photos she decides keeping the secret is better.

Jung-woo visits Mi-Ran to settle matters with her. While he will always care for her, he senses she had ulterior motives. He hands her an envelope and tells her she could have just asked for money instead of stooping so low as to send someone to try and blackmail him.

Mi-Ran insists she will divulge everything about Jung-woo to Ga-Eun with a slide show when she reclaims her newly repaired laptop. Jung-woo goes to dial Ga-Eun's number, explaining calmly to Mi-Ran that he has no problem airing everything out in the open with Ga-Eun right then and there.

Mi-Ran's big reveal nears as she and Ga-Eun meet at a cafe to await the return of Mi-Ran's newly repaired laptop. The big reveal is a let down when it turns out the photos could not be recovered. Mi-Ran realizes this may have had something to do with Yung-eun.

Jae-bum is eating a meal and finds out that his uncle and cousins are trying to set him up on a blind date. Mi-ran comes home after drinking with her boyfriend. She is confused about her engagement and does not know if she is really in love or not.

A chance encounter at lunch pits Yung-eun right in front of the girl she fought, Jung-woo's sister, Jung-hee. Their mothers exchange pleasantries, and Hae-shi asks that Jung-hee take good care of Ga-Eun. The only question is, what sort of family would have a daughter that fights like Jung-hee?

Ga Eun gets a lecture from her sister about her engagement to Jung woo. Mom does not want her to marry him and now her sister says that her mother in law to be is mean because she met her at the wrong time. Jung woo breaks down about his past.

Jung-woo's mother smells Mi-Ran's perfume on his clothes and berates him for conducting himself in such a manner the day before his wedding. Yet, he and Mi-Ran's relationship has had a sudden turn. He now wants her to wait for him until he has reached his goal with Ga-Eun's family.

Ga-Eun's mother has decided to allow the wedding to go on, even after discovering who it was that scuffled with her daughter, Yung-eun. Mi-Ran discovers something of her own, and must move out of Ga-Eun's house right after the wedding.

Although Mi-Ran shows up at the wedding without making the entrance she imagined, she is dragged out just as Yung-eun falls to the floor in agony. At the hospital, Ga-Eun and Jung-woo are told that Yung-eun is fine. She has experienced nothing more than the results of being under stress.

Jung-woo and Ga-Eun honeymoon in Jeju. Jung-woo gets a scare one morning when Ga-Eun spies a cake in the hotel room that she thinks is a surprise from Jung-woo. It features a bride and groom with names written in icing. A startled Jung-woo notices the bride’s name reads “Mi-Ran”.

The newlyweds return home from their honeymoon. Turns out that Mi-Ran managed not to destroy their wedding day. Settling in at home, however, is no easy feat. Ga-Eun and Jung-woo must now decided upon their living arrangements. For now, the plan is to live with Jung-woo's mother.

Ga-Eun seems unable to impress her mother-in-law from the start. She admits to Bun-Nyeo that she lost the family heirloom she received as a wedding gift. A torrent of guilt is unleashed on her, but Bun-Nyeo destroyed the ring on purpose so as to keep Ga-Eun in line.

Ga-Eun shows up unannounced to Mi-Ran’s apartment when she is entertaining Jung-woo. Meanwhile, Mi-Ran’s mother and her mother’s boyfriend show up to Jung-woo’s house for a confrontation. Bun-Nyeo reels when Betty Jung announces Jung-woo got her daughter pregnant just as he was marrying Bun-Nyeo's daughter-in-law.

Bun-Nyeo unleashes fury on Mi-Ran when she is told she is the baby’s grandmother. Mi-Ran claims Jung-woo is going to marry her, but Bun-Nyeo believes she is a liar. She gets even angrier knowing Mi-Ran’s mother and boyfriend have threatened to divulge this fabrication to Ga-Eun’s family.

Mi-Ran tells Jung-woo that she is keeping the baby. While she believes he has a ruthless intention to take over Ga-Eun’s family business, she believes that they can settle down and live happily. Jung-woo decides she must be followed. There is no knowing what she is capable of doing.

Mi-Ran returns home to recuperate after having surgery to terminate her pregnancy. At least, that is what her mother and Jung-woo believe. Although Jung-woo has arranged for her plane ticket to New York, Mi-Ran will not necessarily arrive there alone. She left the hospital without going through with the operation.