Nov. 23, 2018, midnight 8.0
S1E1 - The Wives Celebrate
When Yeong-jae gets accepted into a top medical school, his mom becomes the envy of the other mothers, who all want to know just how she managed it.
Nov. 24, 2018, midnight 8.0
S1E2 - Yeong-jae’s Tablet
While everyone’s still reeling from the shock of what happened, a new family whose background and values seem very different moves into Sky Castle.
Nov. 30, 2018, midnight 8.0
S1E3 - Winds Of Change In Sky Castle
Han Seo-jin confronts the entrance exam coordinator. Lee Su-im joins the Sky Castle reading group, but it’s nothing like what she expected it to be.
Dec. 1, 2018, midnight 8.0
S1E4 - Seo-jin’s Crumbling Pride
Sky Castle is abuzz about the pending vote but Cha Min-hyeok is confident. Seo-jin will do anything for Ye-seo – and stoop as low as deemed necessary.
Dec. 7, 2018, midnight 8.0
S1E5 - At Any Cost
Seo-jin runs into Yeong-jae and tries to talk to him. Su-im ponders what to do about Ye-bin. No Seung-hye and Min-hyeok scramble to formulate a plan B.
Dec. 8, 2018, midnight 8.0
S1E6 - Meritocracy
Seung-hye challenges Min-hyeok head on. Seo-jin thinks that she’s fixed things but doesn’t count on Kang Jun-sang. Ye-bin finds an unlikely confidante.
Dec. 14, 2018, midnight 8.0
S1E7 - Never-ending Rivalry
Su-im and Ye-bin are stunned by what they uncover. Seung-hye and Su-im speculate about Yeong-jae and his family. Kim Ju-yeong puts Ye-seo in her place.
Dec. 15, 2018, midnight 8.0
S1E8 - At Gunpoint
Running mates Kim Hye-na and Hwang U-ju are the favorites in the school election, but Seo-jin colludes with Min-hyeok to ensure that their kids win.
Dec. 21, 2018, midnight 8.0
S1E9 - A Celebration Party
Kang Jun-sang delights in Seo-jin’s plan to host a dinner as an occasion to gloat over the other couples, but things get heated over Su-im’s new book.
Dec. 22, 2018, midnight 8.0
S1E10 - Kwak Mi-hyang’s Reveal
Seo-jin incenses Kim Ju-yeong with her reply, and leads the charge against Su-im, but pays a heavy price for her shortsightedness in more ways than one.
Dec. 28, 2018, midnight 8.0
S1E11 - Hye-na’s Arrival
Seo-jin relents and has Hye-na move in as Ye-bin’s tutor, but makes a startling discovery. Su-im meets Yeong-jae’s father to get his side of the story.
Dec. 29, 2018, midnight 8.0
S1E12 - Another Daughter
Su-im hears a strange fact about Kim Ju-yeong. Seo-jin’s fury boils over. Min-hyeok basks in his daughter’s stories, but Seung-hye spots something odd.
Jan. 4, 2019, midnight 8.0
S1E13 - Coach Kim’s Past
Crushed by the truth about Se-ri’s life in Cambridge, Seung-hye fears the repercussions of Min-hyeok finding out. Su-im gets a request from Yeong-jae.
Jan. 5, 2019, midnight 8.0
S1E14 - Ye-seo In Coach Kim’s Grasp
Seo-jin lambastes Kim Ju-yeong but realizes she’s no match for her own daughter’s insolence. Seung-hye reflects on her choices and takes a stand.
Jan. 11, 2019, midnight 8.0
S1E15 - Hye-na’s Death
Hye-na is rushed to the hospital, but Jun-sang orders Hwang Chi-yeong to operate on another patient. Seo-jin asks Ye-seo what she did at the party.
Jan. 12, 2019, midnight 8.0
S1E16 - U-ju’s Arrest
Not caring if U-ju is sacrificed, Seo-jin begs Kim Ju-yeong to save her daughter, but Ye-seo insists he’s innocent. Su-im infers a sinister motive.
Jan. 18, 2019, midnight 8.0
S1E17 - Devastated Jun-sang
Jun-sang reproaches Seo-jin and his mother about Hye-na. Seo-jin has harsh words for Kim Ju-yeong but has only one thing on her mind: Ye-seo’s future.
Jan. 19, 2019, midnight 8.0
S1E18 - No Option
Jun-sang wants to go to the police and exonerate U-ju, but Seo-jin won’t let him. Seung-hye doesn’t want to live with Min-hyeok – and the kids concur.
Jan. 26, 2019, midnight 9.0
S1E19 - Seo-jin’s Confession
Su-im pleads with Seo-jin, who remains determined. Ye-bin tells her mother what she thinks of her. U-ju wants to know why he should forgive Seo-jin.
Feb. 1, 2019, midnight 8.0
S1E20 - Goodbye, Sky Castle
U-ju announces he’s taking a break from school. Jun-sang resigns and Seo-jin readies to leave Sky Castle. Seung-hye prevails and Su-im’s book comes out.
