Shippo would definitely be in the story. He could be like an older brother to the baby, playing with it and teaching it some of his fox - demon tricks. He would also be there to support Inuyasha and Kagome, and might even be the one to babysit when they have to go on important missions.
Kikyo could also play a role, though it might be a bit complicated. She could be a sort of spectral guardian, watching over the baby from afar. Maybe she has some knowledge or power that could be beneficial to the baby's future. Or she could be a source of conflict if she still has some unresolved feelings towards Inuyasha.
Obviously, Naruto himself is the main character in this situation. His friends like Sasuke and Sakura are very likely to be involved. They would be the ones taking care of him, trying to figure out how to turn him back to normal. Kakashi Sensei would also probably be there, guiding them and trying to keep Naruto safe.
Obviously, Shikadai's parents would be central characters. His mother would be going through the process of pregnancy and childbirth, and his father would be there for support. Also, the medical staff or midwives in their world would be involved, taking care of the mother and baby during the birth.
Well, it could be about their journey in raising the baby. Maybe the baby has some special powers inherited from Inuyasha and Kagome. They might face challenges like protecting the baby from demons who want to use its power for evil.
Obviously, Harry and Ron would be highly involved. They are Hermione's closest friends. Harry would likely be the one leading the effort to find a solution, given his heroic nature. Ron, on the other hand, would probably be more involved in the day - to - day care of baby Hermione, with his big, caring heart.
In addition to the main group, some fanfictions might include other characters from Inuyasha's demon world. For example, his half - brother Sesshomaru might make an appearance. He could initially be indifferent but later show some form of protection or interest in the unborn child due to family ties. Also, some of the friendly demons they've encountered in their adventures could come to offer their help or gifts for the upcoming baby.
They would raise the baby in a loving environment. Inuyasha, with his rough exterior but kind heart, would be a strict yet loving father. He'd pass on his knowledge of the demon world and survival skills. Kagome would bring in her modern - day values like education and respect for all living beings. They might live in a village in the feudal era, but also take trips to Kagome's modern world for things like medical care and to expose the baby to new technologies. Kagome would also make sure the baby understood its heritage, both human and demon, and how to use its powers for good.
Harry Potter is the main focus, of course. But in addition to Hermione and Ron, we might also see characters like Hagrid. Hagrid has a soft spot for Harry and would surely be concerned about his situation. Ginny Weasley could also play a role, perhaps being more nurturing towards baby Harry. And then there are the villains. Voldemort or his Death Eaters might be involved, either trying to take advantage of Harry's weakened state or being thwarted by the efforts of Harry's friends to protect him.
The baby could be an orphan from a nearby village that has been attacked. Kagome stumbles upon the baby while on her travels with Inuyasha. Since she has a big heart, she can't just leave the baby there, so she takes it with her.
In Naruto fanfiction, characters like Jiraiya could also be a 'baby daddy'. He was known for his womanizing ways in the series, so it's not hard to fathom a situation where he has a child. Then there's Itachi. Although his life was full of tragedy and secrecy, a fanfiction could explore a scenario where he has a child before his untimely death. And Kiba could be a character as well. His close bond with his dog Akamaru and his brash personality could lead to a situation where he becomes a 'baby daddy' in a creative fanfiction.
There could also be a storyline where the baby has a special connection to the Shikon Jewel. Maybe the baby is born with a unique ability to sense the jewel's power or even has the power to purify it further. This could lead to many adventures as they try to keep the jewel safe from those who would misuse it.