All her life, Jin Jaeyoung lived on the tracks. She’s a runner. Probably the best runner of the whole school. She never tried doing anything besides running. She never sought to stop and breathe and take a moment to think. She just runs. And runs. And runs.

Kwon Jiyong found his bestfriend’s persistence amazing. The way she never gave up despite of her legs hurting and her lungs burning. He always found that astonishing. He never missed out a single race of hers. He’s always there in the bleachers cheering, waiting for her to finish.

Yet sooner, they’re going to find themselves in a race with time itself.