
S Line
The show will present of a cryptic red line that appears over head of the people in the show.
- Status: Returning Series
- Original Language: ko
- In Production: Yes
- Number of Seasons: 1
- Number of Episodes: 6
- First Air Date: 2025-07-11
Seasons

Season 1: Season 1
Air Date: 2025-07-11
Episode Count: 6
Han Ji Wook is a detective looking to know what is the truth behind the mysterious red line. Kyu Jin, a funny high School teacher. Hyun Hob, a high schooler who has been able observe the red line from birth. The show will present the story of a cryptic red line that appears over head of the people in the show, connecting them to people with whom who have had sexual relations with them.