Love and acceptance are also big themes. Kuro has his own insecurities and past traumas, and Mahiru's unconditional acceptance of him is a key part of their relationship. Fanfictions might expand on this, showing how their love helps Kuro heal. Additionally, the theme of power and control can be explored, as Mahiru is Kuro's master in a sense, but their relationship is much more complex than a simple master - servant dynamic.
One great place to start looking for Servamp Mahiru x Kuro fanfiction is Archive of Our Own (AO3). There are many well - written stories there that explore their relationship in different ways, from cute and fluffy slice - of - life tales to more action - packed adventures where their bond is tested.
One characteristic is the exploration of their contrasting personalities. Mahiru is often portrayed as more energetic and positive, while Kuro is more laid - back and mysterious. Fanfics play on this contrast to create interesting dynamics.
In many Servamp Mahiru x Sakuya fanfics, the theme of redemption can be present. If Sakuya has done something wrong in the original story, the fanfic might explore his path to redemption through his relationship with Mahiru. Also, the theme of power and its control can be explored. As Servamps are related to powers, how they handle their powers in relation to each other and their relationship is something that often appears in fanfics. Another theme could be the idea of family, as the Servamp world has a complex view of relationships that can be related to the concept of family.
A common theme could be the exploration of their relationship dynamics. How they interact, support each other, and deal with the challenges that come their way.
One common theme is the supernatural bond. Since Kuro is a servamp, there are often stories about the special connection between him and the reader. For example, the reader might be able to sense Kuro's emotions or powers in a unique way. Another theme is the idea of protection. Kuro being a powerful being, he often protects the reader from various threats in the fanfiction.
In fanfiction, female Mahiru often shows great courage. She is not afraid to stand up to the powerful Servamps and other dangerous foes. For instance, in many stories, she'll bravely face a Servamp who is causing trouble in the city. She also has a strong sense of justice. If she sees something wrong, she'll do whatever it takes to make it right.
In many Servamp fanfictions where Mahiru is kidnapped, it often leads to a series of intense and emotional events. His friends in the Servamp world would surely be in a panic. Kuro, for example, would likely be extremely angry and determined to rescue him. He would use his powers to track Mahiru down. Maybe he'd team up with other Servamps or their Eves to form a search party. The kidnappers could be some old enemies who want to use Mahiru as a bargaining chip against the Servamps.
One place to find such fanfiction could be Archive of Our Own (AO3). Just search for 'gay mahiru x kuro' on the site and you'll likely come across various stories.
One common theme is friendship. Their relationship can be explored in terms of how they support each other as friends. Another theme could be adventure. They might go on various adventures together, facing challenges and growing closer through those experiences.