This series, written by Kim Eun-sook, is the fourth highest-rated Korean drama of all time. The fantasy romance is about a modern-day goblin, Gong Yoo, who needs a human bride (Kim Go Eun) to end his cursed immortal life. His life then becomes intertwined with a grim reaper, Lee Dong-wook, who is unable to remember his past. The story evolves as all these strangers’ lives intertwine.