One common theme is family. Since the series has strong family elements, fanfictions often explore different family dynamics within the Super Lovers universe. Another theme is love and friendship, as the relationships between the characters are central to the story.
One common theme could be emotional pain. Since it's 'ren hurt', there might be a focus on Ren experiencing some form of emotional distress, like heartbreak or feelings of betrayal. Another theme could be self - discovery in the face of that hurt. Ren might be trying to figure out who he is and how to move forward after the difficult situation.
Love and affection are very common themes. Most fanfics focus on the deep love between Ren and Haru. Another common theme is growth, both as individuals and in their relationship. They often face challenges that make them grow. Family also sometimes plays a role, as their family dynamics can affect their relationship.
A prevalent theme is the change in relationships. The pregnancy usually causes a shift in how the characters interact with each other. For example, some of the more cold - hearted male characters in 'diabolik lovers' might start to show a softer side. Also, there's the theme of secrecy. Sometimes the pregnancy is kept a secret at first, which adds an element of suspense to the fanfiction.
Love and attraction are also prevalent themes. The OC usually forms some sort of romantic or at least a strong emotional connection with one or more of the vampire characters. This can range from a forbidden love story to a more complex relationship where the OC is trying to understand the vampires' true nature while being drawn to them.
One common theme is redemption. Voldemort might be redeemed through his love for Harry. Another is the power of love to change destinies, as their relationship goes against all odds.
One common theme is self - discovery. Hermione often discovers new aspects of herself through her relationships. For example, she might learn about her own emotional needs or her capacity for different kinds of love.
One common theme is the exploration of different power dynamics. In both universes, there are characters with various levels of power. Fanfictions often play with how these powers interact. For example, the magic in Harry Potter and the vampiric abilities in Diabolik Lovers.
One common theme is the struggle between love and duty. The vampire hunter is often conflicted because they are attracted to the vampires they are supposed to hunt. Another theme is the power dynamic. Vampires are generally more powerful, but the hunters have their own skills and wits to rely on.
One common theme is the exploration of Shuu's complex personality. Writers often try to dig deeper into his cold exterior to find the more vulnerable and passionate side. Another theme is the forbidden love aspect, as his relationships in the Diabolik Lovers universe are often full of taboos.
One common theme is the transformation of perception. Snape initially sees Hermione as just another student, but gradually discovers her unique qualities. Another theme is the power of forgiveness. Snape has a lot of past baggage, and Hermione might be the one to help him let go. Also, there's often the theme of intellectual connection as they are both very intelligent characters.