Woo Seo Ri was a gifted young violinist whose life changed when a bus accident left her in a coma at seventeen. She wakes up thirteen years later with the mind of a teenager in a thirty year old body, unsure how to rebuild the future she once planned.
Gong Woo Jin, now a set designer, has lived the past thirteen years avoiding close relationships due to a traumatic event that left him burdened with guilt. His world remains small and carefully controlled until Seo Ri enters it.
As their paths cross, both realize that their lives froze at the same age for very different reasons. Their growing connection pushes them to confront past wounds, open themselves to others, and rediscover the happiness they thought they had lost.