The themes usually include transformation. The maid might transform into a more confident person through the relationship, and the billionaire may become more down - to - earth. Also, there's the theme of secrecy. They may have to keep their relationship a secret at first due to the differences in their social positions, adding an element of suspense to the story.
One common theme is the class divide. The story often revolves around how the two characters from different social strata overcome this gap. Another is the idea of true love conquering all, regardless of financial status. For example, the billionaire may initially be seen as cold and calculating but softens through his relationship with the maid.
Well, there are several common themes. Social prejudice is a big one. People around the couple may not approve of their relationship because of the class difference. There's also the theme of self - discovery. Both the billionaire and the maid learn more about themselves and what they truly want in life through their relationship. Additionally, themes of redemption can be present, where the billionaire has some past mistakes or a cold heart that the maid helps him to overcome.