A possible plot is that Obito and Rin are living in a peaceful village when Rin finds out she is pregnant. They then start to plan for their future as a family. However, rumors start to spread in the village that the baby might have some special powers. This causes some unrest among the villagers. Obito and Rin have to work together to convince the villagers that their baby is just a normal child and that they only want a peaceful family life.
Sure. There are likely fanfictions that explore the concept in a more platonic or non - sexual way. It might involve a magical or special circumstance that leads to Rin being pregnant, like some sort of unique jutsu or prophecy. And Obito is there to support her through it all, with their relationship being more about deep friendship and shared responsibility.
A more complex plot could be centered around any potential threats to Rin during her pregnancy. There could be enemies who see this as an opportunity to target them, so Kakashi has to be extra vigilant in protecting her. This could lead to some intense action scenes where Kakashi uses his Sharingan to fend off attackers while also ensuring Rin's safety.
One idea could be that Kakashi travels back to the moment right before Obito's 'death'. He uses his knowledge of future events to prevent the cave from collapsing on Obito. Then, together they are able to rescue Rin more effectively and change the whole tragic course of events.
One idea could be exploring how the pregnancy changes their relationship dynamic. Sesshomaru, who is usually stoic, might become more protective and caring. Another plot could involve the challenges they face from the demon world due to this unexpected pregnancy. Maybe other demons see it as a sign of weakness or an opportunity to gain power. Also, Rin's growth as she prepares to become a mother in a world full of danger could be an interesting aspect to write about.
One interesting storyline could be about Obito's journey to save Rin in an alternate universe where she didn't die. He might have to face new enemies and challenges to reach her.
One possible plot could be that Obito arrives just in time to save Rin from being captured by enemy ninjas. He uses his Sharingan abilities to outwit the enemies and then escapes with Rin. Maybe he has to fight through a horde of strong opponents, but his determination to save Rin gives him the strength to persevere.
One idea could be that the reborn character tries to prevent Obito's fall to the dark side. They could use their knowledge of the future to stop Madara from manipulating him. For example, they might intervene during the battle where Obito was thought to be dead and expose Madara's true intentions early on.
One plot idea could be that they discover they are pregnant and then have to figure out how to break the news to their superhero friends. They might be worried about how it will affect their team dynamics.
One idea could be a mystery - solving adventure where Neuro and Yako team up to solve a supernatural mystery in their town. They could use their unique abilities and personalities to crack the case.
One idea could be that Tsume teaches Naruto some special Inuzuka clan techniques for tracking. Naruto, always eager to learn new skills, would be a great student. This could lead to them going on a joint mission to track down a powerful enemy who has been causing trouble in the Hidden Leaf Village.