I would recommend 'Douma's Secret Admirer'. In this fanfiction, the reader is a shy character who secretly admires Douma from afar. It's full of cute and endearing moments as the reader tries to get closer to Douma without being too obvious. It's a really heart - warming read.
Well, the plot could involve Naruto being reincarnated as Douma. He would have to deal with Douma's memories and powers. Naruto, having his own moral code, might struggle with the darker aspects of Douma's character. He could use his ninja skills to fight against the enemies that Douma had in his world, but in a more heroic way than Douma did. Maybe he'd form new alliances with the characters in Douma's world and bring a new perspective to the power dynamics there.
Most BSD light novels often have complex characters. Since they are based on literary figures, they bring in the depth and complexity of those original personas. For example, a character might have the same traits as a famous writer but with a unique twist for the BSD universe.
Common themes in douma x kotoha fanfic can include redemption. Maybe Douma has some past actions that he needs to make up for, and Kotoha plays a role in that process. Also, there is often a theme of self - discovery. As they interact more, they learn more about themselves through the eyes of the other. This can be a very interesting aspect to explore in these fanfics as it adds depth to both characters.
Fanfiction.net is also a classic site for finding 'Douma x Reader Fanfiction'. It has been around for a long time and has a vast amount of content. However, the search function might not be as advanced as AO3, but with a bit of patience and browsing, you can still find some excellent stories.
The appeal of all BSD novels lies in their ability to create immersive worlds. They draw readers in with their unique concepts and engaging storylines. For instance, the way they handle character relationships is very captivating. The conflicts and reconciliations between characters make for a great read.