Watch "Once Again: Season 1" on Netflix South Korea

Song Da-hee and Cha Yeong-hun break up on their wedding night, which Yoon Jae-seok happens to witness. Song Na-hee and Yoon Gyu-jin can't stop arguing.

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Jang Ok-bun comes to understand Da-hee's decision after meeting with Yeong-hun. Na-hee strongly considers divorce as an option for herself and Gyu-jin.

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Gyu-jin and Na-hee file for divorce, and agree to new conditions. Running into her for the second time, Jae-seok sits down with Da-hee for drinks.

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Da-hee starts working at Choi Yun-jeong's café. To prevent his mom from finding out about Na-hee and Gyu-jin, Jae-seok makes a selfless move.

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Song Jun-seon pitches his business idea to family members. Wanting a better life for herself and friends, Kang Cho-yeon looks to open a new business.

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Cho-yeon's restaurant opening causes a stir at the market. Na-hee and Gyu-jin compete over a coveted position at another hospital.

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Na-hee and Gyu-jin's living arrangement is almost discovered by Ok-bun during a surprise visit. Cho-yeon butts heads with other merchants at the market.

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Da-hee dines with Yun-jeong, who adores her kind personality. Na-hee takes Ok-bun on a trip to tell her the truth, but struggles to find good timing.

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Na-hee and Gyu-jin reluctantly agree to appear on a television show as a doctor couple. Yang Chi-su steals Jang Ok-ja's heart on a rainy day.

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Ok-bun and Yun-jeong bask in their children's 15 minutes of fame. Ga-hee catches Gyu-jin and Yoo Bo-yeong together, forcing Da-hee to explain.

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Song Yeong-dal lets Park Hyo-sin stay at his home, only to catch Oh Jeong-bong and Lee Jong-su already there. Da-hee avoids Jae-seok out of guilt.

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Yeong-dal is shaken by similarities between his and Cho-yeon's pasts. Hearing Na-hee's sick, Ok-bun drops by and finds Na-hee and Gyu-jin's contract.

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Both families reel from the shock of Na-hee and Gyu-jin's divorce, as well as public backlash. Ok-bun's children worry when she goes missing.

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Na-hee and Gyu-jin officially part ways. After Yun-jeong and Ok-bun brawl on the street, Gyu-jin yells at his mom for the first time.

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Kicked out, Jae-seok moves in with Gyu-jin. Ok-bun refuses to speak to Na-hee, who becomes a subject of concern for Gyu-jin and Lee Jeong-rok.

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Hyo-sin introduces Kim Ji-hun to judo. Jae-seok asks Da-hee to be his pretend girlfriend. Na-hee tearfully opens up to Ok-bun about her miscarriage.

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Jeong-rok gets honest with Gyu-jin about his plans to pursue Na-hee. Jae-seok realizes he has romantic feelings for Da-hee.

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Standing in place of an injured Jeong-bong, Hyo-sin proves himself a natural stuntman. To spend more time with Da-hee, Jae-seok offers to tutor her.

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Na-hee responds to Jeong-rok's confession. Jun-seon tries to convince Hyo-sin to join his company. Ok-ja makes her feelings for Chi-su crystal clear.

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Jeong-rok declares his one-sided love for Na-hee to gossipy colleagues. At a volunteering event, Cho-yeon instantly recognizes Yeong-dal's song.

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Hyo-sin comforts Ji-hun when Kim Seung-hyeon fails to show up. Noticing his thoughtful gestures, Da-hee asks Jae-seok if he likes her.

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Da-hee turns Jae-seok away. Na-hee agrees to give Jeong-rok a chance. Cho-yeon and Ok-ja campaign for an open position at the merchant association.

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Jun-seon finds out about Sung Hyeon-kyeong's side gig as a designated driver. Thankful for Jae-seok's help, Da-hee shares good news and a gift.

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Upset about Jae-seok, Da-hee drunkenly barges into Yun-jeong's home. Hyeon-kyeong slowly lets Jun-seon back into her heart.

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Jeong-rok meets Na-hee's family. Pulling him out of a date with another woman, Da-hee realizes her feelings, but Jae-seok plays hard-to-get.

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Jae-seok and Da-hee start dating in secret. Hyo-sin pretends to be Ga-hee's boyfriend in front of Seung-hyeon. Cho-yeon gets a worrisome phone call.

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Ok-bun doubts Yeong-dal's fidelity. Jun-seon officially asks Hyeon-kyeong for a second chance. Jae-seok and Da-hee get into their first argument.

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Ga-hee overhears a heated conversation between Hyo-sin and his father. Song Seo-jin gets hurt on set, making Hyeon-kyeong lose all trust in Jun-seon.

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Hong Yeon-hong asks Cho-yeon for a temporary place to stay. Grappling with unresolved feelings for Na-hee, Gyu-jin looks into leaving the hospital.

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Jeong-rok asks Na-hee to come with him to New York. Ga-hee tries to decide between accepting a promotion and opening her own store.

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Losing patience with Yeon-hong, the loan sharks cause a scene at the market. Na-hee and Gyu-jin find their ways back to each other.

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Na-hee and Gyu-jin agree to start over. Running into a lost connection, Yeong-dal learns that Song Yeong-suk might still be alive.

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Yeong-dal's hope of finding Yeong-suk vanishes. Taking responsibility for Yeon-hong, Cho-yeon decides to close shop and leave the market.

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Seo-jin uses her voice to save Hyeon-kyeong's life. Yeon-hong concocts a plan to use Cho-yeon's story to carve out a new life for herself.

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Na-hee and Gyu-jin disapprove of Jae-seok and Da-hee's relationship. Yeon-hong successfully fools Yeong-dal. Jun-seon vows to be a better husband.

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Na-hee and Gyu-jin get caught on a date. Hyo-sin opens up to Ga-hee. Yeon-hong aggravates the family, putting Yeong-dal in a tricky spot.

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Ok-bun enjoys some time off while staying with Yun-jeong. Yeon-hong starts to pull merchants into her con. Hyo-sin gets injured saving Ji-hun.

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The Song family starts looking into Yeon-hong, who's gotten her cut of the money and is ready to flee. Yeong-suk and Yeong-dal finally reunite.

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Family and friends welcome Yeong-suk with celebrations. Jae-seok begins to envision a blissful future while looking for a new home.

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To help Da-hee come to a decision, Jae-seok gives her time and a plan to support her. Ga-hee is forced to consider Seung-hyeon's offer for Ji-hun.

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Da-hee and Jae-seok try to stay strong amid harsh objection from their parents. Na-hee feels envious of Da-hee and Yun-jeong’s close bond.

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Na-hee and Gyu-jin try to explain their reconciliation to their parents. Ji-hun asks Ga-hee about her feelings for Seung-hyeon and Hyo-sin.

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Enraged by Yun-jeong's spiteful attitude, Gyu-jin threatens to cut ties. Gyu-jin and Jae-seok charm Jun-seon. Yun-jeong's memory loss worsens.

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Seeing shocking proof of her symptoms, Yun-jeong takes Na-hee's advice. Gyu-jin and Ok-bun spend the day together. Ga-hee gets a flood of orders.

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Yun-jeong is devastated about her diagnosis. Jae-seok and Gyu-jin join the Song family Sunday tradition. Hyo-sin decides to move on from the past.

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With newfound appreciation, Yun-jeong apologizes to Na-hee, Gyu-jin and Jae-seok care for their mother and Ok-bun embraces her old friend.

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Jae-seok and Da-hee run into a disagreement while wedding planning. On an overnight trip, Na-hee and Gyu-jin find a joyful answer behind her nausea.

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Da-hee floats the idea of moving in with Yun-jeong. Na-hee and Gyu-jin become a remarried couple and expecting parents. Chi-su proposes to Ok-ja.

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Yeong-suk catches Lee Hyeon’s eye. Da-hee and Jae-seok tie the knot at a festive ceremony hosted by Gyu-jin and attended by loved ones.

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Three years later, Na-hee and Gyu-jin have their hands full as working parents. Hyo-sin and Ga-hee reunite as star athlete and successful CEO.

Available on Netflix South Korea