One of the common themes is exploration. The dragon sin gets to explore this new and strange world, uncovering its secrets and mysteries. Another is the theme of transformation. The experiences in the other world can transform the dragon sin, whether it's a change in personality, beliefs, or abilities. And then there's the theme of conflict, not just physical battles but also ideological ones as the dragon sin may clash with the values and norms of the other world.
One common theme is power growth. Since Issei has the Sin of Wrath, many fanfictions explore how he hones his power related to this sin. Another theme is his relationships, like with his friends, allies, and potential love interests, and how the Sin of Wrath affects those relationships.
The dragon sin themselves is usually a very popular character. Their unique powers and the mystery around their sin make them interesting. Also, any local heroes or powerful mages in the other world tend to be popular. They often interact with the dragon sin in interesting ways, like being rivals or allies.
Guilt is a very common theme. Characters in such novels often feel a sense of remorse for their actions. For example, in 'The Picture of Dorian Gray' by Oscar Wilde, Dorian Gray feels guilty as he watches his portrait deteriorate due to his immoral actions.
One common theme could be redemption. Since it has 'sin' in the title, characters might be on a journey to atone for their sins.
The exploration of the dragon's nature is also a key theme. In 'Dragon Tamer' Dragon Age fanfiction, authors often dig deep into what makes dragons tick. Are they just wild beasts or do they have their own complex societies? How do they view humans? And how does the tamer navigate this relationship? These questions are often central to the stories and add a lot of depth to the fanfictions.
One common theme is power - up. Just like in games, the dragon often gains new abilities or levels up. Another is exploration, as the dragon might explore new areas in a virtual or real - like world.
One common theme is the idea of an unlikely friendship or love. Since dragons are often seen as fearsome and princesses as delicate, their relationship is an interesting exploration.
Another common theme is the relationship between the dragon kin and humans. In many fanfictions, there is an interaction between these two groups. It can range from friendship to enmity. Sometimes humans fear the dragon kin because of their power, and other times they form alliances. This relationship often drives the plot forward as the two groups navigate their differences and similarities.
A common theme is the bond between the contractor and the dragon. It's often about how they learn to trust and communicate with each other.
One common theme is friendship. The bond between Hiccup and his dragon is often explored deeply. Another is adventure. They go on various quests and face different challenges.