What could be a good plot for a 'One Hundred Days Naruto Fanfic'?

It could be a rogue ninja who has a personal vendetta against Naruto. Maybe someone from his past that he thought was defeated but has come back stronger after a hundred days of secret training in some dark arts.

Perhaps it would focus on the relationships in school. Naruto could have a crush on Sakura and try to impress her during school days. There might be love triangles or friendly rivalries among the characters, adding drama to the fanfic. The story could also show how they grow and learn from each other in the school environment.

It could be about a character's journey throughout a year in the Naruto universe. Maybe it follows a ninja's training progress over 365 days, showing how they grow stronger each day and face different challenges.

It's a complex and thrilling story. The novel takes place in a world where night lasts for a hundred days, and it follows the characters' struggles to survive and uncover the mystery behind this strange phenomenon.

One possible plot could be that Naruto is somehow transported to the One Punch Man universe. He might initially be confused by the different world but then start to adapt. He could team up with Saitama to fight against some powerful monsters. Along the way, Naruto tries to understand Saitama's seemingly effortless power while also showing Saitama the value of his own ninja way.

One possible plot could be that Supergirl lands in the Naruto universe. She teams up with Naruto to fight a common enemy, like an alien force that has also invaded the ninja world. They combine their powers, with Naruto using his shadow clones and Supergirl her super strength and heat vision.

One possible plot could be that Mizore, who is from a different world or dimension, somehow ends up in the Naruto universe. Naruto, being the curious and friendly ninja he is, decides to help her find her way back. Along the way, they face various challenges together and learn about each other's powers and cultures.

One possible plot could be that Naruto, during one of his travels, stumbles upon a strange dimension where he meets Yubelluna. Yubelluna is initially hostile as she doesn't trust outsiders. But Naruto, with his positive attitude and determination, tries to befriend her. They could then team up to face a common enemy that threatens both their worlds.

Well, perhaps Naruto is somehow transported to a world where The Flash exists. He then trains with The Flash to master the speed power. When he returns to his own world, he combines his ninja skills with the speed. He might start by using it for simple things like getting to Ichiraku's Ramen faster, but then uses it in combat. He could dash around his enemies so quickly that they can't even land a hit on him, and he can quickly set up his shadow clone jutsu in multiple locations in an instant.

It could be about a character's unexpected adventure during one night and two days. For example, a fanfic of a superhero who has to deal with a new villain that emerges during this short time frame. The superhero might struggle at first but then discovers the villain's weakness and saves the day.