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S Line: Miniseries

Poster for S Line Season 1

6 episodes · first aired Jul 11, 2025

Hyeon-heup has been able to see the mysterious 'S lines' since birth, a secret only she could perceive. But when special glasses allow others to see it too, long-buried secrets and hidden connections surface, pulling her into a web of desire, betrayal, and dangerous truths in this haunting thriller.

Back to S Line: cast and where to watch

  1. 1 The Girl With The Sunglasses Jul 11, 2025 · 51m Hyun-heup, a girl who was born with the ability to see the S-line that indicates sexual relations. Because of this ability, Hyun-heup's family faces tragedy, and Hyun-heup becomes a…
  2. 2 The Animal Kingdom Jul 11, 2025 · 51m Hyun-heup goes to Bangju High School after receiving a mysterious text message. There, he reunites with Seon-ah, a middle school classmate and Ji-wook's niece. However, Seon-ah is a victim…
  3. 3 A Fall Into Darkness Jul 18, 2025 · 57m Seon-ah falls from the rooftop and falls into a coma. Ji-wook cries out in self-reproach and anger, and cooperates with Hyun-heup to find the culprit. Meanwhile, Jung-woo, an English…
  4. 4 Miseong Motel Jul 18, 2025 · 55m Ji-wook, who was continuing the investigation to find the culprit of the Seon-ah incident, hears about the S-line from Hyun-heup, but doesn't believe it. Meanwhile, Bang Ju-goo, an…
  5. 5 The Glasses Jul 25, 2025 · 55m Ji -wook, who finally discovered glasses in the bloody bathtub of aesthetic, admits that the words of Hyun -suk were true. Use the power of glasses to start an investigation into sexual…
  6. 6 Chaos on the Horizon Jul 25, 2025 · 51m Ji -wook finds out the truth about Sun -ah's S -line through glasses. Meanwhile, Hyun -suk, ahead of his 18 -year -old birthday, makes a big decision and meets the Jun -sun, which leads to…