Hidden Love

Both dramas have a relationship between the leads who are initially believed to be blood related siblings. One or both of the leads are outcast or mistreated children due to their mother being a concubine or servant.

In this drama, there is also a theme of an allegedly incestuous relationship. The heroine is driven by a desire to avenge her family.

Both dramas feature a forbidden love, supposedly between siblings. In each case, the male lead is possessive, jealous, intense, and completely devoted to the woman he loves. The female characters in both stories want to escape and free themselves — they’re looking for a peaceful life. A noble and decent man tries to win their hearts, but despite that, they have erotic dreams about their 'brother' and struggle with conflicting feelings for him.