Maybe Naruto wears the kimono as part of a diplomatic mission to another village. The kimono could be a symbol of the Hidden Leaf's culture. He would have to navigate the complex politics and etiquettes of the other village while looking elegant in his kimono. This could also be a chance for Naruto to show his growth and maturity as a ninja.
One possible plot twist could be that the battle kimono is cursed. Naruto doesn't know it at first, but as he uses it more, it starts to affect his mind. Another twist could be that the kimono was made by an enemy to track Naruto's movements. Or perhaps the kimono is a key to a hidden dimension, and Naruto accidentally activates it during a battle.
One idea could be that Naruto wears a kimono for a special diplomatic event in the Hidden Leaf. It could be a traditional kimono passed down in his family, and while wearing it, he has to learn the proper etiquette associated with it, which leads to some humorous situations as he's not used to such formality.
Well, perhaps fem Harry discovers a hidden steampunk society within the wizarding world. She then starts to incorporate their style and technology into her daily life and her battles. She might use steampunk goggles that help her see through magical illusions or a steampunk - made broomstick that can fly faster and has more maneuverability. And as she wears these steampunk items, she starts a trend among the younger wizards, leading to a cultural shift in the wizarding fashion and technology.
One possible storyline could be Naruto being possessed by a Devilman - like entity. His friends then have to find a way to free him while dealing with the new, more dangerous Naruto. Another could be Naruto willingly accepting Devilman - like powers to defeat a greater threat, but then struggling to control them.
One possible storyline could be that Naruto is kidnapped by a rogue ninja group who wants to use his power for their own evil deeds. They might try to force him to reveal the secrets of his special jutsu. Another could be that he is kidnapped by a mysterious organization that believes he is the key to a long - lost prophecy. They hold him captive while they try to figure out how to use him to fulfill the prophecy. A third storyline could be that Naruto is kidnapped by a group of enemy ninjas from another village who see him as a threat to their plans for domination.
One common theme is the connection to Japanese culture. Since kimonos are an important part of Japanese heritage, these fanfics often explore how Naruto and other characters interact with the traditions associated with kimonos.
In this fanfiction, Harry might be transported to a parallel magical world in Japan while wearing the kimono. There, he has to adapt to the different magical customs and traditions. He could meet Japanese wizards and witches who help him on a quest to find a way back to his own world. Along the way, he learns about the significance of the kimono in their culture and how it can be used as a magical tool.
Well, perhaps in the 'naruto abused by kushina fanfic', it could start with Kushina having a premonition of Naruto causing great harm in the future. So, in her attempt to prevent that, she goes overboard and starts abusing him. Or it could be due to some long - hidden family secret that makes her act out against Naruto, thinking she's doing the right thing for the family or the village in the long run.
In a fanfic, Tsunade's pregnancy might be a result of some sort of experimental medical jutsu gone wrong. Naruto could be the one to find a way to reverse it if she doesn't want the baby, or he could help her through the difficult pregnancy. He could also help protect her from those who might see her pregnancy as a weakness to exploit in the village.
Perhaps in the fanfic, Naruto loses his arm due to a curse or a forbidden jutsu gone wrong. His friends, like Sasuke, then try to find a way to either get him a new arm or help him come to terms with the loss. It could also show Naruto's journey to adapt to his new disability and still be a great ninja, inspiring the younger generation in the process.