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S Line

S Line
★ 7.5/10•2025•TV-MA•Sci-Fi & Fantasy•Drama•Mystery
Similars

Social. Sex. Secrets.

A young woman with the ability to see mysterious red connections between lovers discovers her secret gift is no longer unique when special glasses granting similar powers appear on the black market.

Ahn Joo-Young · Director

StatusEnded
LanguageKO
First Air DateJul 11, 2025

Episodes

Episode 1 - The Girl With The SunglassesE151m

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...

Jul 11, 2025

Episode 2 - The Animal KingdomE251m

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...

Jul 11, 2025

Episode 3 - A Fall Into DarknessE357m

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...

Jul 18, 2025

Episode 4 - Miseong MotelE455m

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...

Jul 18, 2025

Episode 5 - The GlassesE555m

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.

Jul 25, 2025

Episode 6 - Chaos on the HorizonE651m

Chaos on the Horizon

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.

Jul 25, 2025

Actors

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

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