What are the common themes in 'secret lover novel'?

Love against all odds. Since it's a secret relationship, there are always many obstacles like family expectations, social status differences, and business rules. For example, in many novels, the CEO's family might have arranged a marriage for him with another business partner's daughter, but he falls in love with someone else secretly.

One common theme could be the secrecy itself. The lovers might have to keep their relationship hidden from others for various reasons, like social status differences or family feuds in the'mugen' universe. Another theme could be the passion that grows despite the secrecy. Since they can't be open about their love, the intensity might be even greater.

Love against the odds is also a theme. Since it's a secret relationship, there are likely many obstacles like social status differences or workplace rules that they have to overcome.

Love against all odds is a common theme. Since it's a secret relationship, there are always obstacles.

One possible theme could be secrecy itself. The fact that it's a secret lover implies that there are things that need to be hidden, like perhaps the relationship goes against social norms or workplace ethics.

One common theme is obsession. The characters are often obsessed with their lovers, to an extreme and sometimes dangerous degree. For example, they might stalk or control their partners.

Love and acceptance. The idea of a human or another being loving a black dragon goes against common prejudices in the fictional worlds, so acceptance is a big theme.

Growth is often a theme in such novels. After the experience with the previous lover, the characters usually grow and change. They learn from the relationship, become more mature, and might approach future relationships differently.

The theme of sacrifice often appears. One or both of the lovers may have to sacrifice something significant for the sake of their relationship. It could be their own identity, their place in society, or even their life. In some stories, the 'dark' lover may have to sacrifice their dark nature to be with the one they love, or the human lover may have to sacrifice their normal life to be with the supernatural partner. This theme of sacrifice deepens the emotional impact of the story.

Often, there is a theme of mystery. The ghost lover's identity or the circumstances of their death are not immediately clear. It adds to the allure of the story. Also, the theme of the supernatural co - existing with the normal world is present. In these stories, the living and the dead interact in ways that defy normal understanding. For instance, a ghost lover might leave signs in the physical world that only the person they are connected to can understand, like a particular scent or a mark on the wall.