Well, one interesting plot could be Naruto having to rely on his friends in a whole new way as a baby fox. Since he can't communicate as he used to, his friends have to figure out his needs through his actions. Another plot might be that Naruto discovers new abilities or powers in his baby fox form that he didn't know he had before.
Obviously Naruto himself is the main character as he is the one who turns into a baby fox. His friends like Sasuke and Sakura would also be involved. Sasuke might be initially confused but then determined to help Naruto. Sakura would probably be more nurturing and try to take care of the baby fox Naruto. Kakashi Sensei could also play an important role, using his wisdom to figure out what happened to Naruto and how to reverse it.
It could make Naruto more responsible. Since he has to take care of the baby fox, he'll have to think about another being's needs. For example, he can't just go on long missions without making arrangements for the fox.
Sakura might be a bit cautious at first. She'd worry about the fox being a danger or a distraction. But after seeing how Naruto cares for it, she'd warm up and might even help Naruto take care of it, like making sure it has proper food. Sasuke would probably be indifferent at first, but if the fox showed some useful skills in battle, he'd start to respect it. Shikamaru would just sigh and say it's too troublesome, but still offer some strategic advice on how to keep the fox hidden from enemies if needed.
Well, a plot development might be that Naruto's baby fox form attracts the attention of the local villagers in a different way. Since he's a cute little fox, some of the nicer villagers might take him in and care for him, not realizing who he really is. This could lead to some heart - warming moments as Naruto experiences kindness in a new way. Also, his sensei, like Kakashi, might notice something strange about this baby fox and start to suspect it's Naruto. As for abilities, he could have enhanced senses in his fox form that help him detect danger or find hidden things. This could be useful in uncovering secrets in the village or finding out more about his own transformation.
Maybe it's a self - discovery plot. Naruto has always felt a special connection to the Nine - Tails. One day, due to some internal spiritual awakening, Naruto starts to transform into a fox girl. This transformation makes Naruto re - evaluate his identity. He starts to explore the more feminine side of his personality and the hidden powers that come with the fox girl form. Along the way, he also helps other characters in Konoha understand that there's more to a person than their physical appearance, and his new form becomes a symbol of acceptance and change in the village.
In a 'naruto turns into a fox lemon fanfiction', it could be that Naruto is cursed by an enemy to turn into a fox, and the 'lemon' aspect could be symbolic. It might represent something sour in his new form, like he has a hard time controlling his instincts. He could be constantly fighting the urge to act more like a wild fox rather than his normal self, and this 'lemon - like' struggle is the main focus of the story.
Obviously, Naruto himself is the main character in this situation. His friends like Sasuke and Sakura are very likely to be involved. They would be the ones taking care of him, trying to figure out how to turn him back to normal. Kakashi Sensei would also probably be there, guiding them and trying to keep Naruto safe.
His personality would likely become more instinct - driven. Since he's in a baby fox form, he might be more curious about his surroundings like a real baby animal. He could be more cautious too, as a small and vulnerable fox. For example, instead of his usual boldness in battle, he might first assess the situation more carefully before taking action. His loyalty would still be there, but it might show in different ways, like being protective of those who care for him in his fox form.
Maybe the main antagonist is an ancient spirit that has been awakened by Naruto's experiments with transformation. The spirit doesn't like Naruto's interference with nature's balance and decides to punish him by making him turn into a fox with the strange 'lemon' aspect. This spirit then tries to keep Naruto in this form permanently and drive him mad, so that Naruto can no longer be a threat to the spirit's plans of ruling over the ninja world.