Still 17 (2018)

Woo Seo Ri, a violin prodigy at seventeen who was about to study in Germany, got into a bus accident and fell into a coma, waking up thirteen years later. Mentally, she is still only seventeen, while physically, she is now thirty. Due to a trauma he experienced thirteen years earlier, Kong U Jin does not want to have a relationship with others. This series is about a man and a woman whose lives, in their own ways, essentially paused at seventeen. Together, they use all their might to try to open the door to the happiness they once thought had been closed to them. (Source: MyDramaList)