Is S Line coming back?

S Line ended on July 25, 2025, after its first season aired on the wavve web channel.

The show was a drama, fantasy, and thriller series that premiered in 2025. It was set in a world where red lines suddenly appeared above people's heads, connecting those who had sexual relations. These lines, called "S Line," revealed secrets and embarrassing truths about individuals, leading to dramatic and revealing situations. The series followed the investigations of Han Ji-Wook, a detective with an attractive appearance and a free spirit, as he pursued the truth behind the mysterious red lines. Meanwhile, high school teacher Kyu-Jin and student Hyun-Hob also experienced the effects of the S Line, which was a central element of the story.

The cast included Lee Soo-Hyuk as Han Ji-Wook, Lee Da-Hee as Kyu-Jin, and Arin as Hyun-Hob. The show had a runtime of 52 minutes per episode. As the series has ended, there are no upcoming episodes scheduled, and the story concluded with the sixth episode on July 25, 2025.