

She looks up Seo-jin a lot and follows her decisions. Then there is Jin Jin-hee, Seo-jin’s “best friend” and right hand, who is not as polished as Seo-jin but wishes to be. Her family is seemingly perfect on the outside but has several cracks that others don’t see. The most important character is Han Seo-jin, the wife of a high-profile doctor whose goal is to get her elder daughter into Seoul medical university.

While the drama is about four affluent families, the stars of the show are the women of these households and how they run everything. Sky Castle is a dark satirical drama about the lives, motivations, and greed of upper-class families and how it all comes down to academia.
