In Kanato x Reader fanfictions, Kanato is often depicted as a complex character. He has a rather dark and possessive nature. His past traumas contribute to his erratic behavior. For example, his relationship with his mother has left deep scars, which in turn affects how he interacts with the reader in the fanfiction. He might be overly clingy or jealous, showing his insecurities.
A good mio x azusa fanfic often has a strong focus on their relationship dynamics. It shows how they complement each other, like Mio's more reserved nature against Azusa's enthusiasm.
One common theme is the power dynamic. Since Kanato is a vampire and often in a position of power, the fanfiction explores how the reader, usually a human, copes with this. Another theme is the idea of redemption. Some fanfictions try to show Kanato's journey towards becoming a better person through his relationship with the reader.
One popular mio x azusa fanfic is 'The Unspoken Bond'. It beautifully explores their relationship through various everyday scenarios at school and during their music club activities.
Another theme is Yui's struggle to adapt to Kanato's ways. Yui is usually portrayed as a more innocent character, and in the relationship with Kanato, she has to deal with his erratic behavior and the overall dark and dangerous environment of the Diabolik Lovers world. So many fanfics focus on her journey in this regard.
One great 'brothers conflict azusa x ema fanfic' is 'Azusa's Unspoken Feelings'. It delves deep into Azusa's shyness and his growing love for Ema. The way the author portrays their interactions, like the small glances and the accidental touches, is really sweet.
One common theme is the exploration of Kanato's complex personality. Since he has a rather unique and often troubled character, fanfictions might focus on how the reader helps him overcome his inner demons or understand his emotions better.
The relationship between Azusa and Ema in these fanfics is appealing because it's often a slow - burn. Azusa's reserved nature combined with Ema's kind heart creates a dynamic where there's a lot of unspoken tension and budding emotions.
The 'Forbidden Love' trope is quite popular. Since they are in a complex family situation in Brothers Conflict, their relationship might be seen as something that shouldn't happen, which adds an exciting element. Another is the 'Slow Burn' trope. Writers often take their time developing the relationship between Azusa and Ema, gradually building up the tension and romance.
Some dedicated anime fan communities or forums might also be a good source. Members often share their own fanfics or recommend good ones. For example, Reddit has some anime - related sub - forums where you might find Diabolik Lovers Kanato x Yui fanfics recommended by fellow fans.