The drama revolves around a love story between a tough guy, Yang Kang Chil and a bright veterinarian, Jung Ji Nah. Ji Nah's character is described as a cold and indifferent person with some deep emotional scars, but she changes after meeting Kang Chil who's lived a rough life and served some hard time as a result of a friend's scheme. She then learns to give all of herself for the one she loves. Meanwhile, Kim Bum is set to play as Kang Chil's most-trusted friend who's described as a guardian angel type character and has always been by Kang Chil's side.