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    Home»Video»Watch: Arin, Lee Soo Hyuk, And Lee Da Hee Face Deadly Secrets Exposed By Red Lines In “S LINE” Teaser
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    Watch: Arin, Lee Soo Hyuk, And Lee Da Hee Face Deadly Secrets Exposed By Red Lines In “S LINE” Teaser

    Jae youngBy Jae youngJuly 2, 2025Updated:July 4, 2025No Comments2 Mins Read
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    Upcoming drama “S LINE” has unveiled a suspenseful main trailer!

    Based on the webtoon of the same name, “S LINE” is a fantasy thriller in which red lines suddenly appear above people’s heads, connecting them to people with whom they have had physical relationships and thus revealing sensitive personal information overnight. This red line, called “S LINE,” can be seen but not physically touched.

    The newly released main trailer begins with narration by Hyun Heup (OH MY GIRL’s Arin), who says, “I’ve been able to see these lines since I was born,” followed by scenes of S Lines instantly connecting two people who have had a sexual relationship.

    The screen then cuts to Han Ji Wook (Lee Soo Hyuk), a detective who is investigating a murder case as he remarks, “I just can’t understand why they killed them.” When a shocking clue appears, Ji Wook skeptically questions, “If I wear these glasses, I can see the lines?” followed by Hyun Heup’s warning, “That’s why those glasses are dangerous,” hinting that the glasses will become a perilous yet crucial key in the story’s progression.

    The trailer also shows enigmatic homeroom teacher Gyu Jin (Lee Da Hee) suggesting to a fellow teacher that they try on the glasses, adding to the intrigue. Meanwhile, Seon Ah (Lee Eun Saem), a former victim of school bullying, stumbles upon the glasses and witnesses a shocking world covered in S LINES, returning with a completely changed demeanor that flips the atmosphere of the drama.

    As the copy reads, “When the truth is revealed, all relationships collapse,” the trailer shows characters clashing in emotional confrontations, unexpected incidents unfolding, and people consumed by desire, teasing the unpredictable developments that lie ahead due to the S LINE.

    The teaser ends on a chilling note with Gyu Jin’s line, “Can you really be sure of what you saw?” heightening anticipation for the twists and turns yet to come.

    “S LINE” will premiere on July 11, with two new episodes released every Friday for a total of six episodes.

    While you wait, watch Lee Soo Hyuk in “Doom at Your Service” below:

    Watch Now

    And watch Lee Da Hee in “Love is for Suckers” below:

    Watch Now

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    arin drama lee da hee lee eun saem lee soo hyuk s-line
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