Born Kim Shin-ah, Kim Ye-won acted under her real name for her earlier projects but began using Kim Ye-won as her stage name since her appearance in Romance Town in 2011. She is known for her roles in Suspicious Partner and Rich Man. She is also a former member of the girl group Jewelry.
After carving successful careers in their respective fields, the previous owners of Waikiki have left except for Lee Joon-ki. While he struggles with his career, he tries to revive the guest house which is now on the brink of bankruptcy with the help of some high-school friends.