Have a look at the meaning of the S-Line trend as red lines over people’s heads go viral due to Kdrama
Social media platforms including X/Twitter, TikTok, and Reddit are buzzing with a new trend called “S-Line.” Not sure of what it is? Let’s find out together!
Earlier, Filipino actress and rapper Toni Fowler shared a picture of her with her partner. The post which is now making rounds on internet features a red line on Fowler’s head connecting it to her partner’s Vince Flores and Aron Manalo, both of the guys she shares a child with.
What is the S-Line trend and its meaning explained as red lines over people go viral inspired by new Kdrama
s line dijadiin trend tuh ga banget, apalagi ke idol 👎🏼 pic.twitter.com/lhooQ3O0cJ
— zell (@nutriijels) July 17, 2025
The 31-year-old actress captioned the image as, “Dalawang naanakan ako,” translated as “I have two children.” The post which instantly drew the attention of her fans and social media users, soon enough became a trend.
Yang lagi ramai di sosial media tren pamer S-Line. Tren ini memperlihatkan seberapa banyak pengalaman seks*al seseorang dengan menggambar sejumlah garis merah di atas kepala mereka. Tren ini diketahui berasal dari serial drama Korea yang diadaptasi dari Webtoon pic.twitter.com/J67SbKLwFt
— Dilan (@princecprxn) July 18, 2025
A local vet also took to their social media account and shared a picture of lots of cats with several of these red-lines amongst neutered cats. He jokingly captioned it, “Ming tama ka [na].”
About the S-Line Trend
For the curious, the trend seems to have originated by taking inspiration from the newly launched mysterious and thriller South Korean drama titled “S Line.” In the drama, these S-line are but invisible threads that tie one to those they have had a s*xual or intimate relationship with.
People online are now joining in on the trend, making red lines above their heads, linking them to their s*xual partners or people they yearn for as Kdrama viewers make memes.
S LINE TREND…#ENHYEPN pic.twitter.com/pSh48NBb8o
— °•^Secret jouju°•+ (@camcuri_sr45030) July 17, 2025
Inspiration
In this mature series, our main lead, Lee Gyu Jin played by Lee Da Hee, is the only girl who can see these red lines since her birth, until a pair of glasses which can make others see these lines are developed.
It plunged the conservative Korean society into a serious situation. So, our main lead Gyu Jin, a high school student and a detective, Han Ji Uk, played by Lee Soo Hyuk, now tries to find the one who develoed these glasses.
Ask your normie friends about this popular trend on tiktok.
2.7B hashtag views. Very popular among the kdrama community.
AgrGtjbZA77Wp7r3t1h57Qa6dTD3w7QFWJezXHcVbonk#SLine pic.twitter.com/aXcNrVVS07— zTB Intern🎰 (@JasOutfits) July 16, 2025
The South Korean series ‘S Line’ is based on a webtoon of the same name written by Little Bee. For the curious, you can head to the official Korean drama streaming platform Wavve to watch its latest episode.
So far, the series has released four episodes out of six. The remaining episodes will broadcast on Friday, July 25, 2025, on its original television network Wavve. The episodes runs for approximately 50 minutes. So far, the series has received 7.8 rating out of 10 on My Drama List.