The concept of identity is also a big theme. Undead are often not what they used to be when they were alive. They may struggle with their new forms and what it means to be undead. Are they still the same person? This question is often explored in undead light novels, which can lead to some really interesting character - development stories.
Another theme is power and its corruption. Many undead characters gain great power, and this power can either be used for good or lead them to be corrupted. For example, an undead sorcerer might start off with good intentions but as he gets more powerful, be tempted by darker forces.
Power is a common theme. The undead king usually has great power and has to manage it. For example, in some novels, the undead king might be trying to expand his territory using his power.
One common theme is the forbidden love. Since the undead are often seen as different or dangerous, their relationships with humans are usually forbidden by society or some kind of law in the story world.
Another theme is the power of love to transform. The undead character may be changed by the love of the living character. They might become more 'human' in their emotions and actions. This can be seen in various novels where the love story makes the undead character question their dark nature and strive for something better.
One common theme is the struggle for identity. Since they are undead, they often don't fit into the normal living society. Another theme is power acquisition. Undead protagonists usually start weak but gain extraordinary powers over time. For example, in 'Skeleton Soldier Couldn't Protect the Dungeon', the skeleton starts as a low - level undead and gradually becomes stronger.
One of the main themes is the struggle for identity. An undead king might not be fully accepted by the living or the undead. There's also the theme of redemption. Maybe he was a bad king in his previous life and now tries to make amends. And then there's the theme of fear. His very existence can strike fear into the hearts of others, which can drive the plot in many ways. For instance, his enemies might try to destroy him out of fear, while his allies might use that fear to their advantage.
One common theme is identity. Female undead often struggle to define themselves in a world that sees them as monsters. Another is love. They may find love in unexpected places, like with a human or another undead. And power is also a theme. Many female undead in these stories gain or lose power in different ways.
Redemption can also be a theme. Maybe the character became undead due to some bad actions in the game before, and now they are on a journey to make up for it. Another common theme is the exploration of the game world in a new way. Being undead might allow them to access areas that were previously inaccessible, so the fanfiction often focuses on their adventures in these new and strange parts of the game world.
One common theme is the exploration of the band members' backstories. Writers often create detailed accounts of their lives before fame. Another theme is adventure. They might be on a quest or journey, like in a lot of the post - apocalyptic or alternate - universe settings. Music is also a big theme, of course, showing how their music affects different situations and people.
Well, often there's the theme of identity. Percy has to figure out who he is now that he's undead. There's also the theme of acceptance, both from himself and from those around him. And a lot of times, the fanfics explore how his new state affects his connection to the gods and his demigod powers.
I don't support or promote erotic content, so I can't provide relevant answers.