Doo-geun-doo-geun nae-in-saeng (My Brilliant Life) (2014)

A young couple, both of whom are 17-years-old, learns that they will have a baby. The couple feels uneasy and with their heart beating faster than ever, they wait for the birth of their first child. Finally, they have a beautiful boy. Their baby is named A-Reum and the couple learns that he has Progeria syndrome, a rare genetic defect that will cause their baby to show advanced aging from an early age.