What are the common themes in custom made demon king novels?

Sure. 'The Demon King's Bride' is a great custom made demon king novel. It tells a story about a girl who is fated to be the bride of the demon king. The plot is full of twists and turns as she tries to understand and change the demon king's nature.

One common theme is redemption. The demon king, after a life of doing evil, now tries to make up for his past mistakes. For example, in many novels, he might help the weak or fight against other evil forces that are a threat to the world he now wants to protect.

Forbidden love is also typical. Society or the natural order in the story's world may not accept the relationship between a demon king and a non - demon. This creates a lot of tension and drama in the story. It's like Romeo and Juliet, but with a demon king twist.

Power struggle is a common theme. Usually, the demon king girl has to deal with various forces that either oppose or try to use her power. For example, in many stories, there are other kingdoms or powerful entities that see the demon king girl as a threat.

Power. Usually, the reincarnated demon king has some form of great power from their past life that they can tap into. This power often makes them stand out in the new world they are in.

Power management is a common theme. The demon king often has to figure out how to use his power effectively in a more practical sense, not just for destruction.

Isolation can be another theme. Despite their power, demon kings may be alone or have very few they can truly trust. They might be feared and shunned by most of the world in the story, which can lead to their own internal struggles and character development.

Good vs. evil is also typical. The demon king is usually seen as the embodiment of evil, while the priest is associated with good, and the story revolves around their clashes or attempts at coexistence. For example, in some novels, the priest may try to redeem the demon king. This adds a layer of moral complexity to the story.

One common theme is the battle between good and evil. The hero represents good and the demon king represents evil, and they fight for the fate of the world.

The theme of isolation is also present. Being a demon king sets Castiel apart from others, and he often has to deal with being alone. Some fanfics show how he struggles with this newfound solitude and how it affects his mental state and decision - making.