a girl was born with the ability to see red lines and we follow her and several characters that are directly or somewhat involved with the red lines. it was honestly rlly intriguing. i was in slump of what to watch and this hooked me from start to finish. each episode just kept hooking and surprising me. i loved seeing the dynamics on different people and how they interacted and used the glasses. it took a weird,,? turn towards the end but i loved the watching experience nontheless. i hope we get season two >< such a fun watch. contemplated reading the webtoon ver. lolol 4.5 stars !
“Social. Sex. Secrets.”
A young woman with the ability to see mysterious red connections between lovers discovers her secret gift is no longer unique when special glasses granting similar powers appear on the black market.
- Status
- Ended
- Original Title
- S라인
- Original Language
- Korean
- Production
- Sidus
- Network
- wavve
- Created By
- Ahn Joo-Young, Kkomabi
- Last Episode
- S1 E6 · Jul 25, 2025
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Cast
Media
Official Trailer
User Reviews
Frequently Asked Questions
Where can I watch S Line online for free?
You can stream S Line (2025) right here on FlixWow — every episode, in HD, completely free. No subscription, no signup, nothing to install.
What is S Line about?
A young woman with the ability to see mysterious red connections between lovers discovers her secret gift is no longer unique when special glasses granting similar powers appear on the black market.
How many episodes does S Line have?
S Line has 6 episodes — all available to watch free on FlixWow.
Who stars in S Line?
The series stars Lee Soo-hyuk, ARIN, Lee Da-hee, Lee Eun-saem, Kim Dong-young and more.
When was S Line released?
S Line was released in 2025 and is streaming free on FlixWow.
Is S Line worth watching?
S Line holds a rating of 7.5/10 from viewer votes (172 ratings). Watch it free on FlixWow and judge for yourself.