Meleen

The concept of "S Line" is absolutely amazing. I’ve never seen an idea like this anywhere else, and it feels really unique and interesting. It’s fascinating to imagine a world where you could see a red line above people’s heads showing who they’ve had sexual relations with. This idea shows how intimacy can be both good and life-saving—helping someone out of a difficult situation—or terrifying and overwhelming, like in cases of betrayal or judgment. At the same time, it shows that people who have multiple relationships without hurting anyone shouldn’t be judged, and even someone with no experience at all might face scrutiny.
The creators did an incredible job. The final episode, especially the part that felt like a theatrical performance, was executed beautifully and was awesome.

For the Rewatch Value, I gave it a 1. In my opinion, one full watch is enough for any series, no matter how good or bad it is. I rarely feel the need to rewatch them.