Watch "Oh！三光公寓！: Season 1" on Netflix Switzerland

Designer Bit-chae-un clashes with an intriguing architect Jae-hui. Meanwhile, Bit-chae-un is conflicted as she seeks to learn about her past.

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Bit-chae-un receives hopeful news from the design competition but an accusation causes a setback. Sun-jeong reflects on her own memories.

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An unexpected meeting between Jae-hui and his father results in a tense confrontation. After defending her work, Bit-chae-un receives an offer.

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After Bit-chae-un lashes out at Sun-jeong, the family is pulled into a bitter feud. Ra-hun tries to stand up against Hae-deun’s workplace bully.

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Following the initial shock, a new tenant is welcomed into Samgwang Villa. Bit-chae-un starts her internship and works hard to keep up.

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Sun-jeong is shaken after an encounter with an old friend brings back troubling memories. Seo-a and Bit-chae-un finally confront their past.

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As Na-ro grows closer to the villa’s family, Jae-hui’s jealousy and suspicions grow. In a fit of rage, Man-jeong takes a drastic step.

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With her dance audition on the line, Hae-deun works hard to prepare. As his parents' marriage devolves, Jae-hui officially cuts ties with his father.

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As Bit-chae-un bonds with Mrs. Kim, Seo-a’s anxiety grows. Hwak-se helps Man-jeong as she faces her ex. Bit-chae-un and Jae-hui share a moment.

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Mrs. Kim visits Pil-Hong in jail to question him about a suspicious character. Sun-jeong finds herself in a difficult spot at a catering job.

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Suffering from memory loss, Jeong-hu struggles to recover as Sun-jeong helps him. Seo-a makes a startling discovery when she sees an old photo.

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A big opportunity in Hae-deun’s career takes a bizarre turn. Jeong-hu tries to stay hidden at the villa. Sun-jeong is invited to a fashion show.

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Seo-a becomes emotional when Jae-hui embarrasses her in front of the staff. Jae-hui finally voices his feelings for Bit-chae-un and Seo-a.

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Jae-hui grapples with his father’s amnesia and lack of memories. The truth about Bit-chae-un’s birth mother is finally revealed.

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As secrets emerge, an emotional Bit-chae-un processes the revelations about Mrs. Kim and Sun-jeong. Ra-hun learns the true identity of the new tenant.

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Jae-hui comforts Bit-chae-un in her time of need but Na-ro has a declaration of his own. It’s a close call for Jeong-hu when Min-jae goes to the villa.

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After coming clean to Mrs. Kim, Sun-jeong thinks back on the circumstances that brought her to this point. Jae-hui and Bit-chae-un’s feelings grow.

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After a DNA test, Mrs. Kim seeks to make amends with Bit-chae-un, but the young woman is hesitant. Jae-hui is forced to bring Jeong-hu to the company.

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Pil-hong’s release from prison spells trouble for the family. Meanwhile, Min-jae grows suspicious of her husband and son’s behavior.

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Bit-chae-un makes a crucial decision. Seo-a is burdened by her mother’s loyalties. Mrs. Kim’s mother pays an important visit.

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After arriving at Mrs. Kim’s home, Bit-chae-un has a tense encounter with her maternal grandmother. Seo-a’s jealousy and rage boil over.

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As Jeong-hu’s memories begin to return with Min-jae’s help, he struggles to grasp details of his life. Seo-a and Na-ro hatch a plot together.

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Bit-chae-un returns a treasured object that belonged to Sun-jeong. Jae-hui reflects on his father’s change in personality from “James” to Jeong-hu.

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At a fashion event, Bit-chae-un is blamed for a mishap, as Seo-a and Na-ro’s scheme continues. Hae-deun learns about Ra-hun’s lies about his college life.

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Suspicious of sabotage, Bit-chae-un hunts for evidence to prove it. While keeping their romance hidden, Man-jeong and Hwak-se are seen being intimate.

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Pil-hong looks to charm his way into Jae-hui’s life. Mrs. Kim tries to bring her family together, but Seo-a’s insecurity stands in the way.

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Jeong-hu swings between his old nasty personality and the kinder “James” persona. A secret about Na-ro’s past comes to light.

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A meeting between Pil-hong and Mrs. Kim leads to a heated confrontation. Another man’s interest in Min-jae leaves Jeong-hu jealous.

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Sun-jeong finally reveals the truth about the chairwoman’s manipulative behavior and her role in taking Bit-chae-un away from Mrs. Kim as a baby.

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Hwak-Se and Jeong-hutake time to bond after the latter’s identity becomes clear. Min-jae takes an important item from the villa.

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Mrs. Kim is faced with a painful dilemma between her career and relationship with Bit-chae-un. Jae-hui makes a startling discovery.

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Jeong-hu accompanies Min-jae to the doctor, while Hwak-Se goes to a throat specialist. Mrs. Kim confronts Seo-a about her relationship with Na-ro.

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Jae-hui and Bit-chae-un take a step forward in their relationship. Jun-a finally returns home. Mrs. Kim visits the construction site to find Pil-hong.

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Bit-chae-un and Jae-hui's news begins to spread, but not everyone shares in their excitement. Jeong-hu has a heart-to-heart conversation with Seo-a.

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Hwak-se stands up for himself when his social status is questioned. After speaking to Bit-chae-un and Jae-hui, Min-jae has an unusual request.

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Ra-hun plans a big investment but finds obstacles along the way. Jae-hui pursues a major deal to pay off his debt. Na-ro makes a promise to Seo-a.

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Man-jung confides in Sun-jeong but doesn’t get the reaction she seeks. Jae-hui works to salvage his flailing business while Bit-chae-un feels guilty.

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After the arrest, Pil-hong is questioned by the police. Jeong-hu offers to help Jae-hui with his company but tensions rise when old wounds surface.

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At LX Fashion, Bit-chae-un and Hae-deun stand up to Seo-a. Jun-a bares his feelings. The root of Jae-hui’s panic attacks is revealed.

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Hwak-se takes part in the singing competition as everyone tunes in to support him. Meanwhile, Pil-hong makes a move against Na-ro.

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After Mrs. Kim and Seo-a clash, the latter seeks solace outside her home. Min-jae explores new possibilities. The board meeting takes a shocking turn.

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Pil-hong tries to make amends but Bit-chae-un doubts his progress. Meanwhile, Jae-hui and Bit-chae-un approach Jeong-hu with a request.

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As the wedding ceremony begins, there are tears of joy — and remorse — from the attendees. Seo-a and Na-ro are brought into the police station.

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A new relationship causes concern in the villa, while Ra-hun makes a big announcement. At the hospital, the chairwoman makes a confession.

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Hae-deun and Jun-a’s romance leaves both of their mothers perturbed. An old friend returns to Hwak-se’s life, causing hurdles for him and Man-jeong.

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Jeong-hu tries to convince Min-jae that she should move on, but faces resistance. Sun-jeong finds out more about Eun-ji.

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Hae-deun applies for a new position at LX Fashion, but Mrs. Kim may stand in her way. Jun-a and Hae-deun make a big decision.

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Jeong-hu decides to turn over a new leaf. Despite his progress with Mrs. Kim, a troubling package puts Na-ro in a difficult position.

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A shocking accident leads to an anxious wait at the hospital. A call from the landlord could mean the end of Samgwang Villa.

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In the finale episode, couples reunite, foes are forgiven and the families of Samgwang Villa forge true bonds through blood and friendship.

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