Another theme is self - discovery. In these stories, the characters, especially the ones involved in the love story, often discover new aspects of themselves. For example, a human might discover a hidden strength or a vampire might realize a new side of their emotions because of the relationship.
The theme of sacrifice also frequently appears. A vampire or a human in love may have to sacrifice their own desires, safety, or even their identity for the sake of their loved one. For instance, a vampire might sacrifice their chance to be part of the vampire community to be with a human, or a human might sacrifice their normal life to be with a vampire.
Some common themes include the power dynamics. Usually, the vampire has more power physically and sometimes even mentally. But in love, it doesn't always work that way. The human might have the power to make the vampire feel emotions they haven't felt in centuries. Another theme is the discovery. The human often discovers the vampire's true nature over time, which adds drama and tension to the story. And there's always the theme of acceptance. The vampire has to accept that they love a human, and the human has to accept the vampire for what they are, with all their flaws and differences.
Well, the 'forbidden love' aspect is a big trope. Since vampires are often seen as dangerous or different, their love for a human is usually frowned upon. There's also the trope of the vampire having special powers that come into play in protecting their human love interest. And the high school setting usually has the typical clique - related issues which are intertwined with the vampire - human relationship, like the popular kids not accepting the relationship or the vampire being bullied because of their difference.
Power struggles within the vampire community are also common. In high school, different vampire groups might compete for control or resources. This can lead to intense battles and political intrigue.
One common theme is the isolation that the male vampire might feel. In high school, everyone is trying to fit in, but he has this huge secret that sets him apart. Another theme could be power. As a vampire, he may have certain powers that he has to learn to control in a high school setting, which is full of temptations and challenges.
Love is a very common theme. Usually, it's a forbidden love between a human (Sakura) and a vampire (Sasuke). Another theme is the struggle for identity. Sasuke, as a vampire, may struggle with his nature while Sakura might have to deal with her feelings for someone so different.
One common theme is the forbidden love between Sasuke and Naruto. Since Sasuke is a vampire and Naruto is often a human or from a different 'world' in the fanfiction, their love is usually against some rules or norms in the vampire high school society.
The theme of secrecy is also quite prevalent. Sasuke usually has to keep his vampire identity a secret from most people in the high school, including Hinata at the start. This secrecy adds an element of mystery and suspense to the story. It also leads to many plot twists when the secret is either on the verge of being revealed or actually is revealed. It's like a ticking time bomb in the story that keeps the readers on their toes.
One common theme is innocence. High school students are new to love, so there's a lot of blushing and shy glances. Another is the influence of peer groups. Friends can either encourage or discourage a relationship. And also, the struggle between love and academic goals.
One common theme is first love. High school is often the time when people experience their first romantic feelings, and fanfiction often explores that innocent and intense love.
Overcoming obstacles is a big theme too. There could be parental disapproval, academic pressure, or competition from other students. High school love stories often show how the couple tries to overcome these difficulties to be together. For instance, they might study hard to prove to their parents that love doesn't mean neglecting studies, or they might face up to a rival who also has feelings for one of them.