The production team recently released a relationship map of Her Private Life characters. As a talented and sophisticated curator of Cheum Museum of Art, Sung Duk-mi (Park Min-young) handles every task with her excellent intelligence at work. She is always described as sharp and brainy at work. Surprisingly, she is one of the avid fangirls of the popular idol Cha Shi-an (Jung Jae-won a.k.a. ONE) and devotes her time off work to run a fansite for him. After work, she undergoes a stark head-to-toe transformation and turns into a professional photographer for her beloved idol. Duk-mi enjoys her life as a fansite home-master a lot and keeps her double life in secret, especially from her harsh and prickly director Ryan Gold (Kim Jae-wook) at work.