Romance with a divine being is always intriguing, yet never simple or safe -- at least in Korean dramas. "Guardian: The Lonely and Great God," aired through tvN from December 2016 to January 2017, is a series that reinterprets beings from Korean folklore into a modern, touching love story. The male protagonist, Kim Shin (Gong Yoo), an immortal being that can be roughly translated as a goblin, is a general w...