S Line

• Original title: S-Line
• Other title: 
• Broadcast: July 11, 2025
• Distributor: Wavve
• Number of episodes: 6
• Director: Ahn Joo Young
• Cast: Arin, Lee Da-hee, Lee Soo-hyuk, Lee Gwang-hee, Lee Eun-saem, Jang Sun, Lee Ga Sub

The plot is based on a singular concept: red lines, visible only to some, appear overhead, linking individuals who have had intimate relationships. These invisible threads, called S Line, suddenly reveal truths that many would rather hide.

One day, a strange red line begins to hover over each individual, linking everyone to everyone they've ever had sex with, suddenly exposing everyone's innermost secrets to the light of day.