A plot could involve their friends' reactions. Their comrades might be shocked at first, but then come together to support them. Some could offer to train the baby when it grows up, while others might provide a safe place for Rangiku to stay during her pregnancy. It could also be interesting if there was a mystery or threat related to the pregnancy. Maybe an ancient prophecy about their child that some villains want to prevent or use for their own evil purposes.
One possible plot is that Ichigo and Rangiku are initially unsure about having the baby. They could have doubts due to their dangerous lives and the uncertain future. However, as the pregnancy progresses, they start to bond more with the unborn child. They might go on a journey to find a way to ensure the child's safety in a world filled with spiritual battles. Along the way, they meet new characters who either help or hinder their quest for a peaceful future with their baby.
The medical aspect could be a huge challenge. In their world, it's not clear if there are proper medical facilities for a pregnant woman, especially one with spiritual powers like Rangiku. There could be complications during the pregnancy that are difficult to handle. Also, they might have to deal with the pressure of their families or superiors. If their families have different expectations for them, or if their superiors think the pregnancy will affect their duties, it could create a lot of stress for Ichigo and Rangiku.
There's also 'A Shared Path'. This fanfic focuses on how Ichigo and Rangiku's different personalities interact. It shows their journey together, from initial misunderstandings to a deep friendship. The writing style is quite engaging, with vivid descriptions that bring the story to life.
One potential theme could be responsibility. Ichigo would have to face new responsibilities as a soon - to - be father. Another could be the reaction of their friends and family in the fanfiction world. How do they support or oppose this unexpected situation?
One idea could be exploring how they deal with the reactions from their families and friends. Another could be the challenges they face during the pregnancy, like Ichigo's changing body and emotions.
One possible plot idea could be how Ichigo deals with the impending fatherhood in a harem situation. He might struggle to balance his relationships with all the women in his harem while also preparing for the new arrivals. Another could be the reactions of the other harem members to the pregnancies, whether it's jealousy, support or a combination of emotions.
One possible plot could be that after all the battles in Bleach, Ichigo discovers a new side of Rangiku and they fall in love. They get married secretly to avoid the chaos it might cause in the Soul Society and the human world. Then they have to face the challenges of hiding their relationship from their friends and families while also dealing with new threats that target them because of their union.
There might be some out there. You could start by looking on popular fanfiction websites like FanFiction.net or Archive of Our Own. However, it's important to note that while some may handle the concept in a tasteful way, it still might deviate from the original source material in unexpected ways.
One idea could be that their pregnancy is a result of some kind of magical or spiritual event in the Bleach universe. Maybe an ancient spell gone wrong or right, depending on how you look at it. For example, a spell that was meant to protect Soul Society actually ends up causing Rukia to become pregnant. Another plot could involve the two of them having to hide the pregnancy at first because it goes against some Soul Reaper rules or traditions. They then have to deal with the consequences of keeping it a secret while also preparing for the arrival of the baby.
Another idea for the fanfiction could be a time - travel plot. What if Ichigo somehow travels back in time and meets a younger Rangiku? He could influence her growth and development, and in turn, she could have an impact on his view of the past. This would create a complex web of cause and effect, and it would be interesting to see how their actions in the past would shape the future of the Bleach world they know.
A great plot is also essential. It could be an adventure where they work together against a common enemy, or a story that explores their relationship in a new light. For instance, a fanfic where they exchange their fighting techniques and learn from each other can be really interesting.