Drama Mystery Sci-Fi & Fantasy
S01E06 • 7.5/10 • 50m • 25 Jul 2025 • KR •

S Line (2025) S01E06 – S Line

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.

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Cast

Lee Soo-hyuk
Lee Soo-hyuk
Han Ji-wook
ARIN
ARIN
Shin Hyeon-heup
Lee Da-hee
Lee Da-hee
Lee Gyu-jin
Lee Eun-saem
Lee Eun-saem
Kang Seon-ah
Kim Dong-young
Kim Dong-young
Oh Dong-sik
Lee Gwang-hee
Lee Gwang-hee
Joon-seon
Lee Han-joo
Lee Han-joo
Yoon Ji-na
Woo Ji-hyun
Woo Ji-hyun
Jung-woo
Nam Kyu-hee
Nam Kyu-hee
Kim Hye-yeong
Oh Woo-ri
Oh Woo-ri
Lee Kyung-jin
Oh Seung-jun
Oh Seung-jun
Lee Ji-won
Kim So-young
Kim So-young
Choi I-seo
Park Seong-il
Park Seong-il
Bang Seong-jin
Lee Ga-sub
Lee Ga-sub
Oh Jung-min
Park Ye-ni
Park Ye-ni
Hee-won
Jeong Jae-kwang
Jeong Jae-kwang
Bartender
Jang Sun
Jang Sun
Hyeon-heup's Mother
Oh Ah-yeon
Oh Ah-yeon
Kwak Chae-rin (Ep...
Shin Dong-mi
Shin Dong-mi
Police Station Woman
Cho Han-cheul
Cho Han-cheul
Kim Byeong-Cheol ...

Episodes

S Line (2025) S01E01 – Girl With Sunglasses S01E01 50m
11 Jul 25
S Line (2025) S01E01 – Girl With 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...
S Line (2025) S01E02 – Animal Kingdom S01E02 50m
11 Jul 25
S Line (2025) S01E02 – 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...
S Line (2025) S01E03 – Apartment S01E03 56m
18 Jul 25
S Line (2025) S01E03 – Apartment
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...
S Line (2025) S01E04 – Meishin Hotel S01E04 54m
18 Jul 25
S Line (2025) S01E04 – Meishin Hotel
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...
S Line (2025) S01E05 – The Glasses S01E05 54m
25 Jul 25
S Line (2025) S01E05 – 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.
S Line (2025) S01E06 – S Line S01E06 50m
25 Jul 25
S Line (2025) S01E06 – S Line
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.

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