Skip to content
Streambay
S Line Season 1 poster
Complete S Line

S Line Season 1 Episode release dates & where to watch

Premiered

Friday, July 11, 2025

Ended: Friday, July 25, 2025

When does S Line Season 1 come out?

S Line Season 1 premiered Friday, July 11, 2025 on wavve and ended Friday, July 25, 2025. The season has 6 episodes.

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.

Last updated

S Line Season 1 release schedule

S Line Season 1 episode release dates
Episode Release date

1. The Girl With The Sunglasses

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 reclusive loner for a long time. Then one day, a series of suspicious murders occur around Hyun-heup, and Hyun-heup uses his ability to see the S-line to track down the case...

Friday · 1 year ago

2. The Animal Kingdom

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 of bullying from bullies. One day, when the bullying from bullies reaches its peak, Seon-ah discovers a mysterious pair of glasses in her locker...

Friday · 1 year ago

3. A Fall Into Darkness

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 teacher at Bangju High School, witnesses his girlfriend's affair before their wedding and breaks off the engagement. And soon after, he finds a pair of glasses on his desk...

Friday · 1 year ago

4. Miseong Motel

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 employee who lives in a goshiwon and dreams of becoming an actor, finds S-line glasses at Mi-seong's house and feels liberated, but soon after, he sees a woman connected to the music teacher he had a crush on and feels strong jealousy...

Friday · 1 year ago

5. The Glasses

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 violence in the runway. And I think that the person connected to the only one S line of Sun -ah is the culprit of the Sun -a case.

Friday · 1 year ago

6. Chaos on the Horizon Finale

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 an unknown confusion.

Friday · 1 year ago

S Line Season 1 guest stars

  • Oh Ah-yeon

    Oh Ah-yeon

    Kwak Chae-rin (Eps 3)

  • Shin Dong-mi

    Shin Dong-mi

    Police Station Woman

  • Cho Han-chul

    Cho Han-chul

    Kim Byeong-Cheol (Eps 3)

  • Lee Sang-hee

    Lee Sang-hee

    Kyung-Mi (Eps 3)

S Line Season 1 FAQ

When does S Line Season 1 come out?

S Line Season 1 premiered Friday, July 11, 2025 on wavve.

How many episodes are in S Line Season 1?

S Line Season 1 has 6 episodes.

Are new episodes of S Line Season 1 released weekly?

New episodes are released weekly.

When is the S Line Season 1 finale?

The S Line Season 1 finale (Episode 6) aired Friday, July 25, 2025.

How do I get notified when new S Line Season 1 episodes are released?

Download the Streambay app and follow S Line. You'll get a push notification the moment each new episode is out.

Never miss S Line Season 1.

Download Streambay and follow S Line. We’ll notify you the moment Season 1 is released, and as each new episode comes out. It’s free, with no sign-up and no personal information required.

Coming soon to App Store Get it on Google Play