Mid 30's Nam Hyeon Su is a popular radio D.J. and entertainer, who was even more popular in his younger days as a teen idol.
One day, his apartment doorbell rings and a young lady named Hwang Jeong Nam appears and tells Hyeon Su that he is her father. Furthermore, she informs him that he is now a grandfather to her young son, Ki Dong. Hyeon Su would like nothing better than read morejust close the door, but when Jeong Nam threatens to go to the media he allows the young lady and her son to stay in his apartment. Complications arise when they are spotted outside together and people assume they are romantically involved!