S01E01 Episode 1
When Kang Su-il is sentenced to prison, Kim Dong-cheol offers to raise his infant daughter as his own. Nearly three decades later, Su-il walks free.
My Only One
Overview
A woman's life gets twisted one day because of her biological father who shows up after 28 years of absence. He had been thoroughly hiding his identity, afraid that he might be an obstacle in his daughter's life. The father and daughter meet the "only ones" in their lives and put back together the pieces of their broken hearts.
Episodes
S01E02 Episode 2
S01E03 Episode 3
For her sister, Kim Do-ran offers to give up her life savings to So Yang-ja. Dong-cheol bumps into someone he must avoid at all costs.
S01E04 Episode 4
S01E05 Episode 5
When photos from his missing USB drive are leaked online, Wang Dae-ryuk suspects Do-ran. Su-il starts working for the Wang household.
S01E06 Episode 6
S01E07 Episode 7
At a job interview, Do-ran has another unpleasant run-in with Dae-ryuk. Oh Eun-yeong opposes her son's marriage to Na Hong-sil's daughter.
S01E08 Episode 8
S01E09 Episode 9
On her way to the final round of her job interview, Do-ran gets held up on the street by an older woman who seems to think she's someone else.
S01E10 Episode 10
S01E11 Episode 11
Meeting Do-ran as the Wang family's chauffeur, Su-il embraces the opportunity to speak to her. Dae-ryuk keeps up what he sees as a harmless joke.
S01E12 Episode 12
S01E13 Episode 13
Jang Da-ya digs up information on her father's murder case. Su-il resolves to stay. Dae-ryuk tries to apologize to Do-ran.
S01E14 Episode 14
S01E15 Episode 15
Dae-ryuk and Do-ran do their best playing games at the company retreat. After Da-ya and Wang I-ryuk's wedding, Park Geum-byeong goes missing.
S01E16 Episode 16
S01E17 Episode 17
When Do-ran's threatened over her mother's debt, Su-il pledges to take care of it himself. Worried about Do-ran, Dae-ryuk goes to her house.
S01E18 Episode 18
S01E19 Episode 19
Upset about her mother and sister, Do-ran opens up to Su-il. Later, she heads back to the Wang residence to calm down Park Geum-byeong.
S01E20 Episode 20
S01E21 Episode 21
Do-ran considers an unusual request from Eun-yeong. In an attempt to quash his feelings for Do-ran, Dae-ryuk tries dating another woman.
S01E22 Episode 22
S01E23 Episode 23
Do-ran, Su-il and Dae-ryuk wind up going to an amusement park with Geum-byeong. Yang-ja gets the wrong impression of Su-il.
S01E24 Episode 24
S01E25 Episode 25
Su-il's refusal to help him win over Do-ran disappoints Dae-ryuk. Inside the Wang residence, Do-ran runs into trouble with Da-ya.
S01E26 Episode 26
S01E27 Episode 27
Following the competition, Do-ran is placed on Dae-ryuk's team. Da-ya is ordered to apologize. Na Hong-ju meets Su-il at church.
S01E28 Episode 28
S01E29 Episode 29
Now that Geum-byeong has a caretaker, Da-ya wants Do-ran to stop coming around. Do-ran and Dae-ryuk officially go on a date.
S01E30 Episode 30
S01E31 Episode 31
Concerned about his mother, Wang Jin-kuk requests Do-ran be brought back. Kim Mi-ran suffers a blow to her ego at a get-together with friends.
S01E32 Episode 32
S01E33 Episode 33
Hong-ju's heart is stolen when Su-il chases down a pickpocket for her. Su-il decides to support Dae-ryuk in his pursuit of Do-ran.
S01E34 Episode 34
S01E35 Episode 35
Hong-sil panics when she realizes Su-il is the man her sister has fallen for. Da-ya's jealousy grows when she sees Do-ran's new necklace.
S01E36 Episode 36
S01E37 Episode 37
Da-ya finds out about Do-ran and Dae-ryuk's relationship. Meanwhile, Dae-ryuk tells Do-ran he wants to take things to the next level.
S01E38 Episode 38
S01E39 Episode 39
Eun-yeong wants Do-ran to end everything and get as far away as possible from her son. Hurt, Do-ran comes to a heartbreaking decision.
S01E40 Episode 40
S01E41 Episode 41
Dae-ryuk learns the real reason behind Do-ran's actions. Eun-yeong and Da-ya attempt to give Geum-byeong a convincing stand-in for Do-ran.
S01E42 Episode 42
S01E43 Episode 43
Dae-ryuk faces off against his mother, who is adamant that he cannot marry Do-ran. Meanwhile, Jin-kuk says he approves of their union.
S01E44 Episode 44
S01E45 Episode 45
Do-ran's background as an orphan becomes an obstacle for her marriage. Geum-byeong sets out to make sure Do-ran and Dae-ryuk can remain together.
S01E46 Episode 46
S01E47 Episode 47
At the wedding, Su-il is spotted by someone who knows his true identity. Da-ya discovers an interesting document in Geum-byeong's room.
S01E48 Episode 48
S01E49 Episode 49
A household staff finds Do-ran's photo inside Su-il's room. Mi-ran heads to a blind date, all the while moping over Jang Go-rae.
S01E50 Episode 50
S01E51 Episode 51
Do-ran is stunned to hear her biological father was present at her wedding — doubly so when Geum-ok points him out in a photo.
S01E52 Episode 52
S01E53 Episode 53
Learning Do-ran knows his identity, Su-il packs up to disappear. Eun-yeong is determined to make Do-ran's married life tough.
S01E54 Episode 54
S01E55 Episode 55
Geum-byeong and Su-il lend a hand when Do-ran's handed a ton of housework. Geum-byeong wanders to Do-ran's old house again.
S01E56 Episode 56
S01E57 Episode 57
Yang-ja shows up at the Wang residence to ask for money, vexing Eun-yeong. Mi-ran decides she wants to be with Go-rae.
S01E58 Episode 58
S01E59 Episode 59
Go-rae brings Mi-ran home to his mother and aunt, introducing her as his intended. Needing funds for the marriage, Yang-ja goes to Dae-ryuk.
S01E60 Episode 60
S01E61 Episode 61
When Go-rae refuses to give up his engagement, Da-ya tries to talk him out of it. Geum-byeong's jewelry goes missing, and Do-ran becomes a suspect.
S01E62 Episode 62
S01E63 Episode 63
Da-ya reports to Eun-yeong that she saw Do-ran visiting Su-il's room late at night, and grows increasingly resentful as her claims are dismissed.
S01E64 Episode 64
S01E65 Episode 65
The Wang family doesn't understand why Su-il wants to quit all of a sudden. Da-ya gets her hands on shocking DNA test results.
S01E66 Episode 66
S01E67 Episode 67
Insisting Su-il return to his job, Geum-byeong says she'll go on a hunger strike. Dae-ryuk follows Do-ran as she goes somewhere one night.
S01E68 Episode 68
S01E69 Episode 69
The unveiled secret about Do-ran and Su-il astounds Eun-yeong, who kicks Do-ran out of the house. Out on the street, Do-ran collapses.
S01E70 Episode 70
S01E71 Episode 71
Eun-yeong is thrown off guard when an attorney shows up with divorce papers. Hearing this, Do-ran rushes back to the house.
S01E72 Episode 72
S01E73 Episode 73
When a former fellow inmate of Su-il's reappears in his life, Do-ran wonders how they know each other. Hong-sil gives Mi-ran the cold shoulder.
S01E74 Episode 74
S01E75 Episode 75
After witnessing Su-il and Hong-ju together, Da-ya throws a fit in front of Do-ran. Yang-ja has a bone to pick with Hong-sil.
S01E76 Episode 76
S01E77 Episode 77
Reading letters written to her father, Do-ran learns what he's been hiding from her all along — as well as the crimes of his past.
S01E78 Episode 78
S01E79 Episode 79
Requesting divorce from Dae-ryuk, Do-ran takes her belongings out of the house. Yang-ja thinks she's the reason behind their separation.
S01E80 Episode 80
S01E81 Episode 81
Despite the truth about Do-ran's father, Dae-ryuk wants to stay together. Knowing that his past has hurt his daughter agonizes Su-il.
S01E82 Episode 82
S01E83 Episode 83
Finding out that Su-il was once incarcerated throws Hong-ju into a state of shock. Go-rae reveals to Mi-ran that his father was murdered.
S01E84 Episode 84
S01E85 Episode 85
When a horrified Hong-sil and Da-ya show up, Hong-ju tells them she wants to spend the rest of her life with Su-il.
S01E86 Episode 86
S01E87 Episode 87
Having uncovered the awful connection between Su-il and her father's death, Da-ya interrupts her aunt's wedding. Hong-sil is inconsolable.
S01E88 Episode 88
S01E89 Episode 89
Da-ya announces to the neighborhood that Su-il's bakery is run by a murderer. Jang So-yeong comes across Dae-ryuk at a bar.
S01E90 Episode 90
S01E91 Episode 91
Su-il asks around about a man who may be able to fill in a gap in his memories. Hong-sil comes by the bakery and causes a scene.
S01E92 Episode 92
S01E93 Episode 93
As Geum-byeong's condition worsens, a desperate Jin-kuk turns to Do-ran. Go-rae speaks to Su-il about his father's death.
S01E94 Episode 94
S01E95 Episode 95
While Dae-ryuk sets his sights on reuniting with Do-ran, Eun-yeong has other ideas. Go-rae deals with difficult news.
S01E96 Episode 96
S01E97 Episode 97
Hong-sil declines Su-il's offer to save her son's life, but with Go-rae's health deteriorating fast, Mi-ran urges her to reconsider.
S01E98 Episode 98
S01E99 Episode 99
With Su-il stuck in a coma, Dae-ryuk sticks by Do-ran's side against his mother's wishes. A mysterious man has something he needs to say to Su-il.
S01E100 Episode 100
S01E101 Episode 101
Hoping for answers, Do-ran and Dae-ryuk track down the mysterious man. While in Su-il's hospital room, Eun-yeong gives Do-ran a harsh warning.
S01E102 Episode 102
S01E103 Episode 103
Apologies are made. Su-il opposes Do-ran's return to the Wang family, afraid she will be treated with disrespect.
S01E104 Episode 104
S01E105 Episode 105
Dae-ryuk faces competition for Do-ran's affections. Da-ya gets unexpected help as she confronts her husband. Eun-yeong regrets her actions.
S01E106 Episode 106
Cast
Choi Soo-jong
Kang Soo-Il
Uie
Kim Do-Ran
Lee Jang-woo
Wang Dae-Ryook
Yoon Jin-yi
Jang Da-Ya
Jeong Eun-woo
Wang Yi-Ryook
Na Hye-mi
Kim Mi-Ran
Park Sung-hoon
Jang Go-Rae
Koh Woo-ri
So Young-Bae
Lee Du-il
Kim Dong-Cheol
Jin Kyung
Na Hong-Joo
Go Wook
So-Il
Lee Hye-sook
Hong-Sil
