K-Drama S Line India OTT Release Date: Korean dramas continue to draw audiences worldwide with their fresh plots and gripping characters, and ‘S Line’ is the latest addition to that list. The drama was released on July 11, 2025 and was widely loved for its unique plot making it one of the most sensational K-dramas of 2025. With a unique theme that has already sparked curiosity, the series is now available for Indian viewers as well. Here’s a closer look at its release details, streaming platform, and everything you should know before tuning in:
‘S Line’ (stylised Social. Sex. Secrets.: The S-Lines) is a Korean dark fantasy crime thriller drama. The drama explores a world where people’s past sexual relationships become visible as glowing red lines called ‘S Lines’ - above heads.
K-drama ‘S Line’ began streaming in India from September 10, 2025 on Prime Video.
‘S Line’ has six episodes total with a duration of 50-60 mins.
K-drama ‘S Line’ is available via Prime Video India, specifically through its add-on Channel K.
‘S Line’ premiered in South Korea on July 11, 2025 on South Korean streaming service Wavve.
The story of ‘S Line’ focuses on a few key characters:
Shin Hyun-Heup (played by Arin), a high school student born with the ability to see the S Lines.
Detective Han Ji-Wook (played by Lee Soo-hyuk), who is investigating strange incidents connected to the S Lines.
Gyu Jin (Lee Da-hee), a teacher with no S lines, but later in the drama her connection (sometimes ambiguous) with these red lines adds mystery.
Kang Seon-Ah (played by Lee Eun-saem) , another student whose storyline entwines with the central mystery.
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As the drama unfolds, the characters deal with unexpected revelations, moral questions, power dynamics, privacy and shame — how exposing secrets can destroy or transform relationships.
K-drama ‘S Line’ features a fantastical premise where a global phenomenon causes red glowing lines, known as S-Lines, to appear, connecting people to their past and current sexual partners.
Image credit: Prime Video
The story revolves around, “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,” as per Prime Video synopsis.
It’s compact: only six episodes, which makes for a tight, intense viewing experience.
The premise is unusual and provocative: exposing intimate secrets visually, and examining the consequences.
Strong cast with actors known for versatile roles in both mainstream and darker-genre dramas.
For more such stories, stay tuned to HerZindagi.
Image credit: IMDb
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