Bubble Gum (Korean: 풍선껌; RR: Pungseonkkeom) is a South Korean television series starring Lee Dong-wook, Jung Ryeo-won, Lee Jong-hyuk and Park Hee-von.

[3] 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.

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.