archytele The Vault
Season guide

Thirty-Nine: Season 1

12 episodes Premiered Feb 16, 2022 Updated Oct 4, 2026
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Season 1 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 1 Progress Shield

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Binge Efficiency Engine

Season 1: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

25%
75%
Mytharc (3): Crucial lore & season climaxes
Core (9): Character development & subplots
Side Quest (0): Standalone / filler
S1·E1 Mytharc

Thirty, Nine

Feb 16, 2022 · 78 min

Cha Mi-jo announces her sabbatical to her two best friends. Chance encounters and sweet-scented peonies draw Kim Seon-u and Mi-jo together.

S1·E2 Core

One Absurd Day

Feb 17, 2022 · 78 min

Unable to let her go, Kim Jin-seok asks Jeong Chan-young to rethink their breakup. Mi-jo receives a heart-racing confession... and heartbreaking news.

S1·E3 Core

Something I Had Never Thought Of

Feb 23, 2022 · 73 min

Jin-seok's wife confronts Chan-young. Lacking the courage to tell Chan-young the diagnosis, Mi-jo takes her anger out on someone else.

S1·E4 Core

Choice

Feb 24, 2022 · 73 min

Chan-young and Jin-seok tearfully reveal their secrets to each other. A friend's sighting of Kim So-won at an unlikely place rattles Seon-u.

S1·E5 Core

Rachmaninoff Piano Concerto No. 2

Mar 2, 2022 · 68 min

Chan-young creates a bucket list of her to-do items for loved ones. Mi-jo consoles a guilt-ridden Seon-u, who blames himself for So-won's sorrows.

S1·E6 Core

Conviction

Mar 3, 2022 · 67 min

At an impromptu dinner for four, Seon-u's dad shows his affinity for Mi-jo and aversion for So-won. Chan-young's mom stops by while Jin-seok is over.

S1·E7 Core

The Inconvenient Truth

Mar 16, 2022 · 71 min

Chan-young finds information on Mi-jo's birth mother and auditions to achieve a long-awaited dream. So-won moves into the orphanage.

S1·E8 Core

When You Think It's the End

Mar 17, 2022 · 73 min

Seon-u asks his father to apologize to So-won. Chan-young's mom demands answers from the trio. Mi-jo learns of her biological mother.

S1·E9 Core

A Thousand Nights Over and Over Again

Mar 23, 2022 · 77 min

Mi-jo's conversation with her birth mother leaves her distraught. Chan-young excitedly plans her mom's birthday, but nearly misses the celebration.

S1·E10 Core

He Who Dances Must Pay the Piper

Mar 24, 2022 · 66 min

When a strange man comes looking for Mi-jo at her clinic, she seeks answers from her adoptive mother. Jang Joo-hee expresses her frustration and fear.

S1·E11 Mytharc

About Romance

Mar 30, 2022 · 76 min

Joo-hee and Mi-jo take Chan-young out to capture her smile after hearing she's taken her funeral photo. Mi-jo's parents invite Seon-u over for a meal.

S1·E12 Mytharc

Samseong-dong, Hyochang-dong and Gocheok-dong

Mar 31, 2022 · 68 min

Chan-young gets the chance to say goodbye to loved ones at an unforgettable brunch. Worried about Mi-jo, she leaves behind a surprise gift.

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