One idea could be that characters from 'kamisama no inai nichiyoubi' cross over into a different magical world. They might have to adapt to new rules and powers while trying to find a way back home. For example, the main character could meet new allies who help them understand the strange new environment.
A plot could involve a crossover with a modern - day setting. The 'kamisama no inai nichiyoubi' characters could end up in a bustling city. They'd face challenges like dealing with technology they don't understand and trying to hide their otherworldly nature from humans. Maybe they'd also have to team up with local humans to solve a mystery related to their unexpected arrival.
The main character from 'kamisama no inai nichiyoubi' would be very interesting as they already have a well - developed personality and backstory. Their reactions to a new crossover world would be a great focus. For example, how they handle meeting new and different types of characters.
The 'kamisama no inai nichiyoubi light novel' might revolve around the idea of how the absence of a god impacts the events that occur on Sundays. It could have various characters dealing with this strange situation, perhaps having to find new ways to solve problems or face challenges that were previously dealt with by the divine on Sundays. There may be elements of adventure, self - discovery, and exploring the implications of a god - less Sunday.
I'm not sure exactly as I haven't read it fully. But usually in such light novels, there would be a protagonist who is likely to be deeply involved in the situation of the god - less Sunday.
A crossover with 'Fruits Basket' could also be cool. Nanami could end up in the Sohma family's world and befriend Tohru. Tomoe might be a bit jealous at first, but then he gets to know the Sohmas and they all work together. Maybe there's a curse involved that Nanami and Tomoe try to help break with the Sohmas' unique situation.
Well, perhaps in a Jedis path crossover fanfiction, a Jedi who was thought to be lost in the dark side returns through a mysterious crossover. This Jedi has to re - learn the true Jedis path by interacting with modern - day Jedis. They could go on a journey together to discover a long - lost Jedi artifact that has the power to strengthen the Jedis path for all. Along the way, they face challenges from both the dark side and their own self - doubts.
One plot idea could be Jirou and Nanami getting lost in a magical forest together. They'd have to rely on each other to find their way out, facing various magical creatures along the way. This would test their relationship and maybe lead to some romantic moments as they huddle together for safety at night.
A plot could be where Nanami and Tomoe accidentally swap powers for a day. Nanami has to deal with Tomoe's fox powers and all the mischief that comes with it, while Tomoe has to handle being a land god and dealing with human requests. It would be a comical yet also a character - building situation.
A possible plot could be that Nanami gets into trouble with a powerful spirit and Tomoe has to make a great sacrifice to save her. This sacrifice could be something like giving up a part of his power or his memories. It would show the depth of his love for her.
A plot idea could be that Nanami accidentally loses her memories and Tomoe has to help her regain them. He would take her to all the places that are important to their relationship, like the shrine where they first met. Along the way, Tomoe would be patient and kind, and as Nanami slowly starts to remember, their bond would become even stronger.
One idea could be that Nanami's sister discovers a hidden power within herself that is different from Nanami's. Maybe she can communicate with a special type of spirit that no one else can. This could lead to her getting involved in some adventures that are parallel to Nanami's but also unique in their own way.