I'm not entirely sure as 'kumpulan sinopsis novel' is not a very common term I'm familiar with. It might be a collection of novel synopses in a certain language, perhaps Indonesian as 'kumpulan' means collection in Indonesian. But without more context, it's hard to be more specific.
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.
Perhaps in 'kumpulan sinopsis novel', there would be synopses of mystery novels. For instance, a synopsis of an Agatha Christie novel such as 'Murder on the Orient Express' might include details about the murder that takes place on the train, the diverse group of suspects, and how the detective, Hercule Poirot, goes about solving the mystery. There could also be synopses of fantasy novels, like 'The Lord of the Rings'. It would cover the journey of Frodo to destroy the One Ring, the different races in Middle - earth, and the great battle against Sauron.
Since I don't have the exact details of 'cerita new police story', here's a more general view. In such a story, it might start with a disturbing crime scene that shocks the community. The police then begin their investigation. They might interview witnesses, analyze evidence, and face many dead - ends. Along the way, the story could introduce some unique characters among the police, such as a rookie who has fresh ideas or an experienced detective who has seen it all. The climax would probably be the moment when they finally catch the bad guys or solve the mystery, and there could be a sense of justice restored at the end.
One common theme is love and friendship. Since it's about Naruto and Hinata, their relationship is central. It often shows how their friendship gradually turns into love. Another theme is growth. Both characters grow as ninjas and as individuals in these fanfics.