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.
S Line; The red line that ties you and your sexual partner. A girl, able to see invisible 'S-Lines', faces chaos with the emergence of glasses that reveal these lines. As greed consumes the wearers, she and a detective team up to halt this crisis and find the person behind it.
