A sekai visual novel is a form of literature - meets - gaming experience. It is often presented in a visual format with character sprites and scenic backgrounds. These novels can have deep and complex storylines. They may also include elements of character development, relationship building, and plot twists. In a sekai visual novel, you as the player are an active part of the story, and your choices can lead to different endings, which adds to the replayability factor.
There are several mangas that share similarities with Kamisama Kiss. For example, 'Fruits Basket' has a touch of fantasy and romance like Kamisama Kiss.
The Kamisama Kiss manga is fully complete. It has covered everything the author wanted to convey, giving a comprehensive and fulfilling story. There are no loose ends or unresolved issues, making it a well-rounded manga series.
One possible scenario in such a fanfiction could be Nanami and Tomoe going on a journey to the spirit world together. They might face various challenges there, like dealing with mischievous spirits. Tomoe, with his powerful yokai abilities, would protect Nanami throughout the adventure. And Nanami, with her kind heart, could end up making friends with some of the spirits they encounter.
In a Tomoe x Nanami fanfiction, it would be interesting to write about a situation where they have to pretend to be a married couple for some spirit - world related reason. They would have to deal with all the implications of that, like sharing living quarters and acting affectionate in public. This would force them to confront their true feelings for each other.
There might be some fanfiction on FanFiction.net as well. However, the quality can vary greatly. Look for stories with high ratings and reviews. Some authors are really good at exploring the concept of Nanami being pregnant in the context of the Kamisama Kiss universe, adding new plotlines and character developments.
A possible fanfiction plot could be Nanami accidentally loses her powers and Tomoe has to protect her while also trying to find a way to restore her powers. In the process, they discover new things about each other and their feelings grow stronger. It could be a story full of action, a bit of angst, and a lot of tender moments.