The theme of sacrifice also often appears. The succubus or the other half in the relationship may have to sacrifice something, like their powers or their place in their own world, in order to be together. It shows the depth of their love and the difficulties they are willing to overcome for each other.
One common theme is the struggle between love and the succubus's nature. Since succubi are often associated with seducing humans for energy, falling in love can be a big conflict for them.
One common theme is the struggle between the succubus's nature and her desire to be something more. For example, she might be a succubus by birth but wants to break free from the traditional role of seducing and draining energy from humans.
Love and forbidden relationships are also common themes. A succubus falling in love with a hunter or other characters in the Supernatural universe creates a lot of drama. It goes against the natural order in the show's lore, and fanfiction writers often play with this concept to create engaging and emotional stories.
A common theme is temptation. The succubus uses her seductive abilities to draw in the characters, and the story often revolves around whether they can resist. Another theme is the power struggle. The succubus has power through her seduction, and the characters may try to gain power over her or break free from her influence.
One common theme is the clash of cultures. Since succubi have their own set of behaviors and values which are often different from those in Fairy Tail. Another theme is power struggle. Succubi usually possess powerful abilities, and in the fanfictions, there's often a struggle between them and the Fairy Tail wizards over who has more control or influence.
Power is a frequently explored theme. Succubi often have certain powers, and fanfics may show how they use or abuse these powers. Additionally, the idea of identity is present, as succubi in fanfic may struggle with their identity as demons in a world that may not fully understand or accept them.
Romance is a very common theme. The idea of a forbidden or otherworldly love between the male reader and the succubus is often explored. For example, in many stories, they have to overcome differences in their natures.
A common theme is the clash of cultures. Naruto comes from a world of ninjas and now he's in a world with devils, angels and succubi. Another theme is power - how Naruto's ninja powers compare to the supernatural abilities in Highschool DxD. Also, relationships, like how Naruto might interact with succubi characters.
One common theme is temptation. Since succubi are often associated with seducing mortals, this theme is prevalent. They use their charm to lure characters into various situations.
Love and lust are very common themes. Succubus stories often explore the boundaries between true love and the lust that a succubus can evoke. Also, power dynamics is a theme. The succubus usually has some sort of power over the humans she targets, and the story may revolve around how that power is used or challenged. Additionally, redemption can be a theme in some cases, where the succubus tries to find a way to atone for her actions.