Bubble Gum

Park Ri-hwan (Lee Dong-wook) comes from a wealthy family who now works as an oriental medical doctor in his own clinic. He grew up with his best friend since childhood, Kim Haeng-ah (Jung Ryeo-won) who works as a radio producer. Haeng-ah's parents both died when she was young and she was taken care by Ri-hwan's mother after her father's death. Both Ri-hwan and Haeng-ah had feelings for each other but Haeng-ah is taking things slowly due to Ri-hwan's mother who does not want them to be together. The story also involves a chaebol, Yi-seul (Park Hee-von) who has feelings for Ri-hwan and Haeng-ah's ex-boyfriend, who is also her senior/director of the company she works in, who wants her back.