Mi-sol (JUNG Ji-so), who has the XP disease, cannot be exposed to sunlight due to her medical condition. She always stays home in order to avoid sunlight, and finds joy in singing. One day, Mi-sol’s life shifts as she falls in love with a boy outside of her window, Min-jun(CHA Hak-yeon), who runs a fruit truck in the neighborhood. Despite the great obstacle of her disease, they...