MOVIE SCREEN TITLE PROFILE
TELEVISION SERIES
S Line (2025)
Popularity 6.4
Overview
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.
TITLE INFORMATION
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Trailers & Videos
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THE PEOPLE BEHIND IT
Cast & Crew
Performers and key production credits saved for this title.
Top Cast
Lee Soo-hyukHan Ji-wook
ARINShin Hyeon-heup
Lee Da-heeLee Gyu-jin
Lee Eun-saemKang Seon-ah
Kim Dong-youngOh Dong-sik
Lee Gwang-heeJoon-seon
Lee Han-jooYoon Ji-na
Woo Ji-hyunJung-woo
Nam Kyu-heeKim Hye-yeong
Oh Woo-riLee Kyung-jin
Oh Seung-junLee Ji-won
Kim So-youngChoi I-seo
Park Seong-ilBang Seong-jin
Lee Ga-subOh Jung-min
Park Ye-niHee-won
Jeong Jae-kwangBartender
♙
Jang SunHyeon-heup's Mother
Key Crew
Ahn Joo-YoungDirector
KkomabiComic Book
ARTWORK GALLERY
Images & Posters
EPISODE GUIDE
Seasons & Episodes
Season and episode information in the catalog.
Miniseries
6 episodes · First aired 2025-07-11 · ★ 6.1 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.
E01
The Girl With The Sunglasses
2025-07-11 · 51 min
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...
E02
The Animal Kingdom
2025-07-11 · 51 min
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...
E03
A Fall Into Darkness
2025-07-18 · 57 min
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...
E04
Miseong Motel
2025-07-18 · 55 min
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...
E05
The Glasses
2025-07-25 · 55 min
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.
E06
Chaos on the Horizon
2025-07-25 · 51 min
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.
