Welcome to Waikiki Full Spoilers! Welcome to Waikiki is a 2018 comedy kdrama about 4 friends running a guest house in Seoul. Their lives are upended when a single mom and her baby become long-term guests! Welcome to Waikiki stars Kim Jung Hyun, Lee Yi Kyung, Son Seung Won, Jung In Sun, Ko Won Hee, and Lee Joo Woo. WATCH IT!