Series

S Line

2025★ 7.51 seasons

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.

Cast

Featured 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

Episodes

1The Girl With The SunglassesHyun-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 …51 min

2The Animal KingdomHyun-heup goes to Bangju High School after receiving a mysterious text message. There, he reunites with Seon-ah, a middle school classmate and Ji-woo…51 min

3A Fall Into DarknessSeon-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…57 min

4Miseong MotelJi-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…55 min

5The GlassesJi -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 t…55 min

6Chaos on the HorizonJi -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…51 min

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