I'm not sure if there is an official fanfic with such a plot. Fanfics cover a wide range of themes, but this kind of plot might be considered quite extreme and not in line with the original tone of many series. However, there could be some out there in the vast world of fan - created content.
One popular Mori x Haruhi fanfic could be 'A Day in the Life'. It focuses on their interactions during a normal day at school in the Ouran High School Host Club setting. It shows how Mori's quiet nature contrasts with Haruhi's more down - to - earth and sometimes sassy personality.
Some popular themes could be friendship development between Haruhi and Mori. For example, they might go on adventures together within the school or in the fictional world of the story. Another theme could be how they support each other in dealing with the various challenges that come up in their school life, like difficult exams or social events.
A common theme could be friendship development. Since Mori is often seen as a rather stoic character, the fanfiction might focus on how Haruhi's sister breaks through his reserved exterior and they form a unique bond.
Mori Senpai would likely become more openly affectionate. In the series, he was often reserved, but as Haruhi's husband, he would show his love more freely. Haruhi, on the other hand, would probably become more aware of Mori's needs. For example, she might notice when he's tired or stressed and take steps to comfort him.
Well, one consequence could be a major shift in their relationship. They would have to deal with the responsibilities of having a child, which might include changes in their living situations, education (if applicable), and social relationships. Their families might also get involved, adding more complexity to the story.
You can start by searching on fanfic platforms like Archive of Our Own (AO3). Just type in 'Mori x Haruhi' in the search bar, and it will show you a list of relevant fanfics. You can also check the ratings and number of kudos to find the more popular ones.
Well, it could be about their unexpected friendship at first. Maybe Haruhi's sister has some trouble at school and Mori, being the calm and reliable one, helps her out. This could gradually develop into a deeper bond as they discover they have more in common than they thought.
Some 'Haruhi sister x Mori' fanfiction might explore their relationship in a more platonic way. For example, they could be on an adventure together within the world of the 'Haruhi' series. The fanfic might focus on how they interact with other characters in the group as well, and how their relationship affects the overall dynamic of the group.
One common theme is friendship development. Since they are from different personalities, exploring how they become closer friends is a popular topic. For example, Mori's quiet nature and Haruhi's more outspoken self learn to understand and complement each other.