Popular shin soukoku fanfics usually have a strong emotional core. They make readers feel the connection between the two characters, whether it's loyalty, love, or just a deep friendship. The pacing is also important. It shouldn't be too rushed or too slow. A good fanfic will have a balance, gradually building up the story. Additionally, the fanfic might incorporate elements from the original work's world - building, like the different organizations in Yokohama. This gives a sense of familiarity and authenticity to the readers.
Sure. 'A Bond Beyond Duty' is a great shin soukoku fanfic. It delves deep into the relationship between the two characters, showing their growth and how they support each other. Another one is 'Under the Moonlight'. It has a very interesting plot that takes the characters on an adventure, exploring different aspects of their personalities. And 'In the Shadows of Yokohama' is also popular, with its unique writing style that makes the story really engaging.
Fukuzawa, the president of the Armed Detective Agency, would be a good character to include. His leadership and wisdom can influence the events involving Soukoku. Higuchi, who is loyal to Akutagawa, can also be added. Her interactions with Soukoku can be used to explore the power dynamics within the Port Mafia. And Elise, Mori's ability manifestation, can add an element of mystery and unpredictability to the fanfic.
I'm not sure who Aku specifically is. Aku could be a person with a great imagination who tells all kinds of stories, like adventure stories, fairy tales or even true - life stories.
It could be someone from the Naruto universe who doesn't like Naruto's newfound fascination with Aku. For example, Danzo might see Naruto's interest in Aku as a threat to the stability of the village and try to stop Naruto from further exploring Aku - related things. So, Danzo could be the main antagonist in this case.
The character of Aku could be developed in a 'pregnant Aku in Samurai Jack fanfiction' by exploring how he interacts with the world around him differently. He may become more reclusive as he doesn't want others to see his 'weak' state. Or he could become more aggressive in trying to protect his pregnancy, which would be a new aspect of his character. Also, his relationship with his own power might change. Maybe he has to find new ways to use his magic that don't harm the unborn, which would force him to grow and adapt in ways he hasn't before.
One idea could be a crossover where Aku accidentally opens a portal to the Naruto universe. Naruto, being the curious and brave ninja he is, decides to explore Aku's world. They could start off as enemies, but gradually come to understand each other's motives and end up teaming up against a greater evil that threatens both of their worlds.